Suffolk County Police First Squad detectives are investigating a motor vehicle crash that killed a pedestrian in Lindenhurst this morning.

Mariano Diaz-Pichardo was walking his bike across Sunrise Highway at the intersection of Buffalo Avenue when his bicycle was struck by a Hino box truck attempting to avoid him. Diaz-Pichardo was then struck by a Ford F550 at 9:10 a.m.

Diaz-Pichardo, 60, of Lindenhurst, was transported to Good Samaritan Hospital Medical Center in West Islip where he was pronounced dead. The driver of the box truck, Manuel Lucero-Lucero, 30, of Bay Shore, and the driver of the Ford, Steven Mitchell, 54, of Ronkonkoma, were not injured.

Motor Carrier Safety Section conducted safety checks of the vehicles.

Anyone with information on the crash is asked to call the First Squad at 631-854-8152.