More than 1,000 inmates, many convicted of serious crimes, have escaped from a prison in Libya's eastern city of Benghazi, the country's prime minister confirmed.

According to The Associated Press, it wasn't immediately clear if the jailbreak at Koyfiya prison was part of a larger series of protests taking place across the country on Saturday in response to the assassination on Friday of prominent political activist Abdelsalam al-Mosmary, who was an outspoken opponent of the Muslim Brotherhood.

According to AP:

"Gunmen outside of the prison fired into the air as inmates inside began setting fires, suggesting the jailbreak was preplanned, a Benghazi-based security official said. Those who escaped either face or were convicted of serious charges, a security official at Koyfiya prison said. ...Special forces later arrested 18 of the escapees, while some returned on their own, said Mohammed Hejazi, a government security official in Benghazi. Three inmates were wounded in the jailbreak and were taken to a local hospital, he said."Copyright 2016 NPR. To see more, visit http://www.npr.org/.