A series of coordinated explosions has rocked churches and hotels in Sri Lanka killing almost 300 people on Easter Sunday in the South Asian island nation.

More than 500 people have been injured in the worst attack since the end of the civil war 10 years ago.

The blasts targeted four hotels, including the Shangri-La, Kingsbury and the Cinnamon Grand in the capital Colombo.

Sri Lanka’s government said on Sunday it would impose a “temporary” social media ban in the wake of the blasts.

Social media networks and messaging apps, including Facebook and WhatsApp, have been blocked.

“The government has decided to block all social media platforms in order to prevent incorrect and wrong information being spread. This is only a temporary measure” Udaya R Seneviratne, secretary to the president said in a statement.

Nearly all victims were Sri Lankan. Dozens of foreigners were also killed.