A coast guard surveillance plane crashed into a canal in southern Sweden on Thursday, and rescuers feared all four people on board were killed.

The CASA 212 plane crashed into a man-made canal near Falsterbo, on the tip of Sweden's southwestern coast, and sank before rescue boats could get to it, said Peter Lindquist, a spokesman for the sea rescue services.

Officials said one dead body was found inside the plane, but rescuers called off a search for survivors around 4 p.m.

Kent Naterman, a spokesman for the county rescue services, said rescue workers had also reported finding body parts from one or two people in the water.

Lindquist said a witness saw the plane go down shortly before 1:30 p.m., but that it was unclear what caused the crash.

Witnesses told Swedish news agency TT that a wing broke off from the double-engine plane before it crashed, but rescue officials could not confirm those reports.