At least 304 people have died, with 1,800 injured and hundreds missing after Haiti was struck by a 7.2-magnitude earthquake that reduced churches, hotels and homes to rubble, in the latest tragedy to hit a Caribbean nation already mired in profound humanitarian and political crises and still reeling from the recent assassination of its president.

The earthquake on Saturday, which struck the country’s southwest at 8.29 am local time, was felt across the Caribbean and rekindled painful memories of the devastating 2010 quake that killed more than 200,000 people. The prime minister, Ariel Henry, has declared a month-long state of emergency.

Henry said he would not ask for international help until the extent of the damage was known. He said some towns were almost completely razed, adding that the government had people in the coastal town of Les Cayes to help plan and coordinate the response.