Iraqi forces broke a siege on the country’s largest oil refinery by Islamic State of Iraq and Syria (ISIS) militants on Thursday, liberating around 300 soldiers who were held hostage in the area, sources told Al Arabiya News Channel.

In early May, U.S. forces were trying to relieve pressure on Iraqi forces at the geographically important Baiji oil refinery, hitting militants with air strikes after ISIS seized the area.

The militants overran Iraqi government defenses east of the city of Ramadi on Thursday, police and pro-government tribal fighters said. […]