In this still frame from video provided by KABC-TV, divers aboard two rescue boats search for wreckage from two small planes that collided in midair and plunged into the ocean off of Los Angeles harbor Friday, Feb. 5, 2016. There was no immediate word of any survivors, authorities said. The planes collided at around 3:30 p.m. and apparently went into the water about two miles outside the harbor entrance, U.S. Coast Guard and other officials said.(KABC-TV via AP) MANDATORY CREDIT TV OUT
In this still frame from video provided by KABC-TV, divers aboard two rescue boats search for wreckage from two small planes that collided in midair and plunged into the ocean off of Los Angeles harbor Friday, Feb. 5, 2016. There was no immediate word of any survivors, authorities said. The planes collided at around 3:30 p.m. and apparently went into the water about two miles outside the harbor entrance, U.S. Coast Guard and other officials said.(KABC-TV via AP) MANDATORY CREDIT TV OUT

PORTLAND, Maine — The wreckage of a Maine fishing vessel that sank last year has been located off Massachusetts.

The sinking of the Emmy Rose killed four fishermen last November about 22 miles northeast of Provincetown. Klein Marine Systems, a New Hampshire company, announced the discovery of the vessel on Monday, the Portland Press Herald reported.

Klein Marine had been working with the Coast Guard and federal authorities to locate the wreck. An investigation into the sinking is ongoing.

The sinking led to the deaths of Captain Robert Blethen Jr. of Georgetown, Maine, and crew members Jeffrey Matthews of Portland, Maine; Ethan Ward of Pownal, Maine; and Michael Porper of Gloucester, Mass.