The associated Press (AP), an American news agency, reported that 2 women and 3 children drowned when a boat carrying dozens of Europe-bound migrants capsized off Libya, a U.N. official said Wednesday.

Safa Msehli, spokesman for the International Organization for Migration, said the incident took place late Tuesday. A fishing boat and Libya’s coast guard managed to rescue some 77 migrants and returned them to shore, she said.

According to AP agency, a total of 400 migrants were intercepted and returned to Libya late Tuesday and taken to detention centers in the North African country, Msehli said. At least 480 migrants were intercepted and returned to Libya over the weekend, according to the IOM.