Boat carrying suspected migrants capsizes near Puerto Rico, killing 11

Thirty-one people were rescued, with the effort to find more still underway as total number of those aboard remains unclear

A boat loaded with suspected migrants capsized north of an uninhabited island near Puerto Rico and 11 people had been confirmed dead while 31 others were rescued Thursday, authorities said.

It wasn't immediately clear how many people were aboard the boat when it turned over, said US coast guard spokesman Ricardo Castrodad. He said a mass rescue effort" was still underway.