The International Organization for Migration said six bodies were recovered from the sea and 29 others were missing and presumed dead.

At least 35 people are presumed dead after a boat capsized off the coast of Libya, the United Nations migration agency said Saturday.

The International Organization for Migration (IOM) said the ship sank near the western Libyan city of Zabrata, the main point of departure for Africans trying to make a dangerous voyage across the Mediterranean.

The International Organization for Migration said six bodies were recovered from the sea and 29 others were missing and presumed dead. It was not immediately clear what caused the wooden boat to capsize on Friday.

“The ongoing loss of life in the Mediterranean cannot be normalised, human life is the price of inaction,” the IOM tweeted.

“Dedicated search and rescue capabilities and safe landing mechanisms are urgently needed to prevent further death and suffering,” the UN organization said.

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Friday’s death is the latest involving migrants who left North Africa in search of a better life in Europe.

In the past week alone, at least 53 people have been reported dead or presumed dead off the coast of Libya, according to the International Organization for Migration.

Libya has become a major transit route for migrants trying to reach Europe by sea, as chaos erupted in the North African country since an insurgency toppled longtime ruler Muammar Gaddafi in 2011.

For years, the United Nations and human rights groups have repeatedly warned that migrants in Libya face risks of torture, sexual abuse and human trafficking.

Traffickers have benefited from the chaos in Libya in recent years, smuggling people across the oil-rich country’s long border with six countries. Migrants are then usually loaded into ill-equipped rubber dinghies for dangerous sea voyages.

Investigators commissioned by the UN human rights body have found evidence of crimes against humanity committed in Libya against migrants held in government-run prisons and abused by human traffickers.

According to the International Organization for Migration, at least 476 people died along the central Mediterranean route from January 1 to April 11.