NAIROBI (Reuters) – Sixty corpses of would-be refugees from Ethiopia and Somalia were found on a beach in Yemen over the weekend after smugglers forced many of them overboard, an international aid agency said on Monday.

Medicins Sans Frontieres (MSF) said the latest victims on the notoriously perilous smuggling route had came across the Gulf of Aden from the Somali port city of Bosasso, fleeing war and poverty at home.

In one of two incidents that caused the deaths, smugglers tipped the refugees into the sea at night after noticing lights on land and fearing they would be spotted by the coastguard, MSF quoted survivors as saying.

“They forced us into the sea, even if the water was too deep. Several people did not know how to swim and they drowned,” one survivor said. An eight-months pregnant woman was injured by the boat’s propeller after being forced overboard, survivors said.

In a second incident, MSF workers discovered a group who had made it to shore after their boat capsized. They said they had buried 23 fellow passengers.

“The boat was stuck almost upside down in the sand, not far from the beach. The fishermen were trying to find survivors underneath but they could not,” said an MSF worker, Said.

“So I had to dive under. I managed to get in the hull and with God’s help, we got two women and a man out safe.”

According to the U.N. refugee agency UNHCR, about 32,000 people got safely to Yemen from Somalia between the start of the year and October. At least 230 people had died, and 365 were missing, the agency said last month.

“A lot of attention has been paid lately to tackling the issue of piracy in the waters off the Horn of Africa,” said MSF’s Yemen boss, Francis Coteur.

“Unfortunately, little attention is paid to the drama of the refugees crossing the same waters in horrific conditions. Much more needs to be done to address this issue.”

Conflict in Somalia, drought, and food price rises, have worsened hardships across the Horn of Africa, already one of the world’s poorest regions, this year.

Sixty three out of a total 199 incidents of piracy worldwide between January and September this year were in the Gulf of Aden and off the Somali coast, according to the International Maritime Bureau.