Only two more migrants’ bodies from the fishing vessel that sank off Greece last week have been found, bringing the official death toll to 80. Reported to be men, they were recovered from the sea off the Peloponnese peninsula on Monday.

The ship, packed with refugees and asylum seekers to the point where there was not a spare inch on the upper deck or in the hold, sank in the early hours of last Wednesday.

There were a reported 750 people on board, including many women and children, and only 104 people are known to have survived. The assumed death toll of over 600 is the worst in a single event in the Mediterranean since April 2015, when a sinking cost up to 1,100 lives.

Many of those who died were Pakistanis. In a statement on Sunday, Muhammad Sadiq Sanjrani, the chairman of Pakistan’s senate, said that around 300 Pakistani nationals had boarded the ship. He declared a day of national mourning to be held on Monday. The Guardian reported last week witnesses who said the Pakistanis were kept in the hold, with only 12 of them among the survivors.

The governments of Europe’s southern states who enforce the European Union’s “Fortress Europe” policy are responsible for the deaths of tens of thousands of people over the last decade. Greece plays a major role, with successive governments closing Greece’s borders. Greek Prime Minister Kyriakos Mitsotakis boasted last month, “We protected our country’s borders both on land and at sea, and reduced irregular arrivals by 90 percent. We proved that the sea has borders, and those borders can and must be guarded”. Refugees who do manage to get to the Greek mainland are immediately thrown in migration detention camps to await deportation.

The survivors of Wednesday’s tragedy were first thrown in a filthy warehouse facility in Kalamata, lacking basic living conditions, and are now being held in a fenced detention camp near Athens.

Greece’s conservative New Democracy government is seeking to evade all responsibility, even as evidence grows that it mounted no rescue mission despite the Greek coastguard travelling alongside the dangerously overcrowded, unseaworthy vessel for hours before it sank.

In a swipe at NGOs including Alarm Phone, who were in contact with the boat in the hours before it sank and who documented how the Greek authorities made no attempt to rescue the vessel, Mitsotakis said on Sunday in a speech in Sparta, “It is very unfair for some so-called ‘people in solidarity’ [with refugees and migrants] to insinuate that the [coastguard] did not do its job…These people are out there [around the clock] battling the waves to rescue human lives and protect our borders,”