By Jim Clark

State police responded to reports of a serious injury crash involving a bicyclist and a motorcyclist on Route 16 at Interstate 93 last Friday evening at approximately 7:39 p.m.

Upon arrival, troopers discovered that a 2013 BMW motorcycle had collided with a bicyclist. The bicyclist sustained serious, life-threatening injuries, and later succumbed to those injuries after being transported to Mass General Hospital.

The bicyclist, a 29-year-old man from Somerville, has been identified as Mohamed A. Zeidan, 29.

The motorcyclist, identified as Donald Y. Wood, 52, of Topsfield, was also transported to Mass General wife non-life threatening injuries.

The facts and circumstances of the crash are currently under investigation.