More than 90 migrants have drowned in a boat accident in the Mediterranean.

This was announced by the organization Doctors Without Borders and the UN High Commissioner for Refugees, Filippo Grandi, on the weekend.

According to the information, the oil tanker Alegria 1 was only able to save four survivors from a floating life raft.

The survivors reported that they spent at least four days on a boat that was completely overcrowded with around 100 passengers and then sank.

More than 90 people drowned.

They left Libya for Europe.

"Europe has shown how it can selflessly and effectively take in four million refugees from Ukraine," Grandi wrote on Twitter on Sunday.

"Now we urgently need to think about how to do the same with the other refugees and migrants who are knocking on the doors in their distress."

The new disaster became known on the same weekend that Pope Francis in Malta had expressed clear criticism of how refugees in the Mediterranean are being treated.

On Sunday, the head of the Catholic Church met migrants during his visit to the island and then spoke of a "shipwreck of civilization".

He urged Europe to better share the burden and not leave countries like Malta alone.

However, the smallest EU country is repeatedly criticized by aid organizations for turning away people in need.