HAMBURG, Germany -- Anti-globalization activists have rioted for a third consecutive night in Hamburg even after Group of 20 leaders had already left the northern Germany city.

Police used water cannon trucks again early Sunday against rioters attacking them with iron rods and pavement blocks. They arrested 144 protesters and temporarily detained another 144 persons.

More than 200 officers have been injured in the violence since Thursday. The number of injured protesters wasn't clear.

German Foreign Minister Sigmar Gabriel condemned the violence, saying "Germany's reputation is severely affected internationally by the events in Hamburg."

Get Breaking News Delivered to Your Inbox

Gabriel told Bild am Sonntag paper that a Europe-wide investigative team should search for suspects.

The overwhelming majority of the tens of thousands who took to the streets peacefully protested against the G-20 summit.

President Trump tweeted Sunday morning about the summit, calling it "a great success for the U.S."

"Explained that the U.S. must fix the many bad trade deals it has made. Will get done!" Mr. Trump tweeted.

The G 20 Summit was a great success for the U.S. - Explained that the U.S. must fix the many bad trade deals it has made. Will get done! — Donald J. Trump (@realDonaldTrump) July 9, 2017

Mr. Trump also tweeted about the face-to-face meeting he had with Russian President Vladimir Putin while he was overseas, saying he "strongly pressed" the president on Russian meddling in the 2016 U.S. election, and that Putin "vehemently denied it."

"I've already given my opinion," Mr. Trump tweeted. He continued: "We negotiated a ceasefire in parts of Syria which will save lives. Now it is time to move forward in working constructively with Russia!"

On Saturday, Mr. Trump said he had a "tremendous meeting" with Putin, his first comments on the high-profile talks with the Russian leader.

Also on Saturday, Mr. Trump assailed North Korea as a "problem and menace" as he met with Asian allies on the sidelines of the G-20 summit to build consensus on next steps after the North's recent test-launch of an intercontinental ballistic missile (ICBM). In a separate meeting with Japanese Prime Minister Shinzo Abe, Mr. Trump said the two were tackling "the problem and menace of North Korea."

In the final press conference of the summit, German Chancellor Angela Merkel on Saturday spoke out against the Trump administration's intentions to drop out of the Paris Agreement on climate change. Merkel said the decision to leave the climate accord would be "irreversible."

"You are familiar with the American position. You know that, unfortunately -- and I deplore this -- the United States of America left the climate agreement, or rather announced their intention to do so," she said.