BREMEN, Maine (AP) – The Maine medical examiner’s office says more testing is needed before it can determine the cause of a Maine man’s death while he was clam digging.

The medical examiner’s office performed an autopsy on 19-year-old Ian Sanborn, who was found dead on Saturday along the shore in Bremen.

The Maine Warden Service says Sanborn was digging clams with a friend on Friday when he said he wanted to rest before leaving the area. The friend left, but Sanborn never returned home. His body was found Saturday afternoon, a short distance from where he was clamming.