From The Guardian:

At least 152 Somalis and Ethiopians were on board an overcrowded migrant boat that left Yemen’s southern port city of Aden on Tuesday. Around 30 of them drowned. There are reports of gunfire used against the passengers.

According to a statement by the UN refugee and migration agencies:

“The vessel is believed to have been operated by unscrupulous smugglers who were attempting to take refugees and migrants to Djibouti, while also trying to extort more money from these refugees and migrants,” the statement said.

The boat turned back and “capsized amid reports of gunfire being used against the passengers”, it said, adding that it was working with the Yemeni coastguard to try to establish what happened.

“At least 30 people have died in this tragic incident,” it said.