The summit is being attended by around three dozen leaders of Islamic countries, including the prime ministers of Bangladesh and Malaysia, and presidents of Afghanistan, Egypt, as well as US President Trump. The Saudis said at least 37 leaders are present, NPR's Jane Arraf reported from Riyadh.
He said the U.S. sought a "coalition of nations" in the Middle East with the aim of "stamping out extremism".
The president put much of the onus for combating extremists on Mideast leaders: "Drive them out of your places of worship".
"Drive them out", Trump said.
Reasserting Islam as a religion of "peace and tolerance", the king emphasized that Saudi Arabia shares "the same objectives with Donald Trump to fight terrorism and extremism". "There can be no tolerating it". Trump said the two countries "have a wonderful relationship" but that "there has been a little strain" and vowed to improve things further.
"We will make decisions based on real-world outcomes - not inflexible ideology".
"I think the United States needs to decide what it wants from this relationship with Saudi Arabia".
He called for "gradual reforms, not sudden intervention".
This speech is closely watched in the region, especially in light of Trump's attempt earlier this year to halt travel from seven Muslim-majority countries. Trump has retreated from a campaign pledge to move the U.S. Embassy in Israel from Tel Aviv to Jerusalem, bending to the same diplomatic and security concerns as other presidents who have made similar promises.
"I am reassured that there wasn't anything extremely offensive said about Islam", Shadi Hamid, a senior fellow at the Brookings Institution, told Weekend Edition Sunday. Instead, he seethed at the terrorists who called the region home, though he offered no solutions to prevent radicalisation or entertained any discussion of the sources of disaffection for young Muslims that have led them to turn to violence.
It's a departure from his anti-Muslim rhetoric during his presidential campaign. He said the United Arab Emirates was helping USA efforts in Afghanistan. Trump praised Bahrain and Kuwait for anti-terrorism efforts.
Pablo Zabaleta proud of Manchester City career
We'll see what happens next season. "He didn't score but he helped us to make assists", said Guardiola. City will finish third if it prevails over Watford next Sunday in the EPL season's final match.
Ricky Stenhouse Jr. wins the Geico 500
This move not only puts the manufactures on different pit strategies but it also lessens the chances of the "big one" occurring. The last victory for Roush Fenway Racing was provided by Columbia's Carl Edwards on the road course at Sonoma in June, 2014.
He said that terrorism must not only be measured by the number of dead, but the number of "vanished dreams".
"It is a government that speaks openly of mass murder", Trump said.
While Riyadh is likely to welcome Trump's tough talk on Iran in his speech, he has yet to follow through on his election pledge to renegotiate the Iran nuclear deal struck by his predecessor and global allies.
While running for the job he now holds, Mr Trump criticised President Barack Obama for not using the term "radical Islamic extremism" and said that refusal indicated Mr Obama did not understand America's enemy.
The anti-Iran rhetoric is welcome to the Saudi royalty. "Great to be in Riyadh, Saudi Arabia".
"Frankly, look, we're having problems with the Muslims, and we're having problems with Muslims coming into the country", he told Fox Business Network last March following a series of attacks in Brussels.
THEN:Trump had plenty of harsh words for Saudi Arabia before his election. "We are not here to lecture", he said.
Saudi Arabia's military is leading a campaign against Shiite Houthi rebels in Yemen, and have routinely been accused of indiscriminate targeting by human rights organizations. Thousands of civilians have been killed during the conflict. The 81-year-old King Salman, who used a cane for support, was brought to the steps of the plane in a golf cart. "Saudi Arabia giving $25 million, Qatar, all of these countries".
Billboards featuring images of Trump and the king and emblazoned with the motto "Together we prevail", dotted Riyadh's highways, and Trump's hotel was bathed in red, white and blue lights and, at times, an image of the president's face.
On Saturday, Trump and Saudi King Salman bin Abdulaziz Al Saud signed an arms deal worth $109 billion, part of a broader $350 billion package of economic and defense investments over the next decade.
Labour has made a last-ditch plea for students to register to vote by stressing its manifesto pledge to abolish tuition fees. Appearing on Sky News he said engaging with republicans was necessary to help bring about peace in Northern Ireland.
Next round of the Virgin Australia Supercars Championship is at Darwin's Hidden Valley circuit on June 17-18. On Saturday McLaughlin had gapped the field and won his 150th championship race comfortably.
According to the FIR, Karthi used his influence over FIPB officials to help INX Media get FIPB clearance illegally. The raids were conducted at their residence in Nungambakam in Chennai and hometown Karaikudi in Tamil Nadu.
Une commission d'éthique, composée de trois personnalités indépendantes du mouvement, peut être saisie par tout candidat. D'ici là, les 428 premiers seront réunis samedi en séminaire au musée des Arts premiers du Quai Branly, à Paris.
A YouGov poll for the Sunday Times showed that with 35 percent support, Labour had gotten closer to Tories at 44 percent. Sky's Sophie Ridge noted: "But you're condemning all bombing there, can you condemn the IRA without equating it to".
The United States and Gulf Arab countries announced an agreement to coordinate efforts against the financing of terrorist groups. He heralded the ambitions of the region's youth and warned that the scourge of extremism could tarnish their future.
The area stretches from the Texas Panhandle through Oklahoma , western Kansas, Nebraska and Iowa into Minnesota and Wisconsin . About 7 percent of the state, mostly in southeast Oklahoma , remains under moderate drought classification this week.
The resulting company is to be named HuntsmanClariant, with stock exchange listings in both Zurich and NY . Huntsman had a market value of $6.4 billion while Clariant's was 6.9 billion Swiss francs ($7.1 billion).
Donald Trump in middle of a growing scandal
The other two candidates named in the U.S. press are New York Appeals Court Judge Michael Garcia and senior lawyer Alice Fisher. Trump told reporters on Air Force One that he may select Comey's successor before leaving for his first foreign trip next week.
Dozens Walk Out at Notre Dame to Protest Pence
On Saturday, Pence was the commencement speaker at Grove City College, a private, Christian liberal arts school in Pennsylvania. The overwhelming majority of students shook Pence's hand as they walked across the stage, but a few walked past him.
Martin Truex Jr. Wins Go Bowling 400 AT Kansas
Blaney's season started with a second-place finish at Daytona and he recorded two more top-10 finishes over the next four races. Truex dove to the bottom and roared from the rest of the field, ensuring there would be no more misfortune for him at Kansas.
Partner charged with murder of mum-of-one Rita
Tony Collier, solicitor for the accused said that, given the nature of the charge, there would be no application for bail. A Mass in memory of Rita Apine will be held on Sunday at 1pm in St Fiacre's Church, Loughboy in Kilkenny city.
Zidane: La Liga title in Real Madrid's hands
Sandro Ramirez made 32 appearances for Barca before moving to Malaga where he has scored 16 goals in his debut season. Barcelona coach Luis Enrique said he believed "100 percent in the professionalism of all coaches and players".