Hundreds of Rohingya refugees from Myanmar fled a detention center in northern Malaysia where a riot broke out early Wednesday, officials said, with six killed, including two children, after being hit by vehicles on a highway as they escaped.

A total of 582 Rohingya escaped the Sungai Bakap temporary immigration detention camp in northern Penang state by breaking down doors and barrier grills, though 362 have since been re-arrested, the immigration department said in a statement.

Malaysia, which does not recognize refugee status, has long been a favored destination for ethnic Rohingya fleeing persecution in Myanmar or refugee camps in Bangladesh.

Since 2020, however, thousands have been rounded up and housed in crowded detention centers as part of what Malaysian authorities say are efforts to stop the spread of the coronavirus.

Police said they were still investigating the cause of Wednesday's riot, while authorities searched for the remaining detainees who had fled.

Two men, two women, a boy and a girl were killed after being hit by vehicles while trying to cross a highway some 8 kilometers (5 miles) away from the detention camp, Kedah state police chief Wan Hassan Wan Ahmad told reporters in a live-streamed press conference.

Prior to the riot, the camp held 664 Rohingya refugees, including 137 children.