The survivors, who said their vessel had initially carried 105 people, were found clinging to the wreckage of an overturned boat before being taken aboard nearby ships, according to Mediterranea Saving Humans and Sea-Watch. The bodies and survivors were later transferred to an Italian coast guard patrol boat and brought to the island of Lampedusa.

Italy’s interior ministry declined to comment on the incident, while the Italian Coast Guard did not immediately respond to requests for confirmation. The rescue took place during Easter, a major holiday in Italy.

Footage released by Sea-Watch showed migrants struggling in open waters, with several individuals holding onto the partially submerged orange hull as rescuers approached.

The central Mediterranean route, one of the world’s deadliest migration corridors, has been further complicated this year by adverse weather conditions. Rough seas have reduced the number of departures from North Africa but increased the risks for those attempting the journey.

The International Organization for Migration estimates that at least 683 people have died along the central Mediterranean route so far this year, marking one of the highest death tolls recorded since 2014.