At least eight people died after a passenger ferry sank off the coast of Kyrenia in northern Cyprus. The ferry was carrying 259 passengers and eight crew members when it overturned after water entered the vessel during bad weather, authorities said.

Authorities said two large waves struck the ferry in succession, allowing water to enter before it capsized. About 100 people have been rescued and brought ashore, while many passengers remain missing.

Turkey and northern Cyprus have launched a joint search operation using vessels and helicopters to find the missing people. The ferry captain and seven crew members have been detained as an investigation into the cause of the accident proceeds. Authorities said action would be taken against those responsible if any negligence is found.