Greenland's ice sheet melted 17 times faster than the historic average during a May heatwave that also hit Iceland, the scientific network World Weather Attribution (WWA) said in a report Wednesday.

"The melting rate of the Greenland ice sheet by, from a preliminary analysis, a factor of 17... means the Greenland ice sheet contribution to sea level rise is higher than it would have otherwise been without this heatwave," one of the authors of the report, Friederike Otto, told reporters, adding that "without climate change this would have been impossible".

South Korea on Wednesday halted loudspeaker propaganda broadcasts into the nuclear-armed North, the defense ministry said, adding it was a bid to "restore trust" under Seoul's new administration.

The decision to suspend the broadcasts "was made to make good on a promise to restore trust in South-North Korea relations and seek peace on the Korean peninsula", the defense ministry said in a brief statement, adding the halt started Wednesday.

Los Angeles police began arresting people in the city's downtown late Tuesday, as groups gathered in violation of an overnight curfew after a fifth day of protests against Donald Trump's immigration crackdown.

Three Alawite civilians were killed in western Syria overnight, hours after an attack on government forces killed at least one officer, a war monitor said on Wednesday.

The Gaza civil defense agency said 31 people were killed and "about 200" wounded Wednesday when Israeli troops fired on people waiting to enter a food distribution center.

Air raid sirens sounded across central Israel and Jerusalem on Tuesday as the military said it had detected a projectile launched from Yemen.

"The IDF (military) has identified the launch of a missile from Yemen toward Israeli territory," the military said in a statement, adding that sirens were sounded in several areas. AFP reporters heard loud booms over Jerusalem, similar to past interceptions.

Two people were killed in separate drone strikes Tuesday on a car and a motorcycle in the northwestern bastion of the Islamist former rebels who now head the Syrian government, rescuers said.

There was no immediate claim of responsibility for the twin drone strikes in the Idlib region but a U.S.-led coalition in Syria has carried out past strikes on jihadists in the area.

After a meeting with French envoy Jean-Yves Le Drian, Lebanese President Joseph Aoun condemned "the occasional attacks on UNIFIL patrols", calling them "unjustified and unacceptable".

There have been several confrontations between people in south Lebanon, where Hezbollah holds sway, and U.N. peacekeepers in recent weeks.

Army forces launched Tuesday a search in a building in a densely populated area of Hadath in Beirut's southern suburbs.

A Lebanese military official said the forces were looking for weapons at the request of a five-member committee supervising the Israel-Hezbollah ceasefire.

The EU on Tuesday announced the removal of the United Arab Emirates from its money-laundering "high-risk" list but added Lebanon alongside nine other jurisdictions.

The European Commission said it added Algeria, Angola, Ivory Coast, Kenya, Laos, Lebanon, Namibia, Nepal and Venezuela, along with Monaco, to the list of countries that need extra monitoring of their money laundering controls.