The Indonesian island of Lombok was shaken by a third big earthquake on Thursday as the official death toll topped 300.

The strong aftershock, measured at magnitude 5.9 by the U.S. Geological Survey, caused panic, damage to buildings, landslides and injuries.

National disaster agency spokesman Sutopo Nugroho said that the death toll will continue to rise because rescue workers are still finding victims in the ruins of collapsed buildings and some people who are already buried are not yet included in the official toll.