A great white shark that washed ashore at a Cape Cod beach earlier this week is named Koala, and was known to local researchers, investigators said. Its cause of death is still a mystery, as a necropsy was inconclusive.

A necropsy on Koala, the great white shark that washed up dead in Orleans on Oct. 15 was inconclusive. Here's what we know.

The white shark found washed up on an Orleans beach on Tuesday was named Koala, according to the Atlantic White Shark Conservancy. The shark was seen washed ashore and towed away by police in what they called an atypical call for service.

There are no obvious signs of how or why a shark that washed up on a Cape Cod beach this week died, the Atlantic White Shark Conservancy said Thursday, adding that this shark had been previously identified by the agency two years ago.

A necropsy was underway Wednesday to determine the animal's cause of death, according to the Atlantic White Shark Conservancy.

Officials had to use a tow truck to carry the 3.6 meter shark off the beach.

On Tuesday, the Orleans Police Department in Massachusetts received an unusual piece of news: A great white shark had mysteriously washed ashore in Cape Cod. Officials called local tow company Nauset Recovery Inc,