SAN JOSE — A 59-year-old man died Sunday after his van collided with a sound wall along Highway 101, the California Highway Patrol said.

The man’s name has not yet been released by the coroner’s office pending confirmation of his name and notification of his family.

The collision happened about 12:40 p.m. Sunday on northbound 101 north of Lawrence Expressway.

The CHP said the man was driving a 2014 Dodge van when for unknown reasons he drifted to the right, went off the roadway at an unknown speed and crashed into a sound wall that borders the right shoulder.

He was found unresponsive in the vehicle and was taken to a hospital where he was pronounced dead at 1:38 p.m., the CHP said.

The CHP said alcohol is not suspected to be a factor in the crash..

The onramp from Lawrence Expressway to northbound 101 was closed for approximately an hour while the CHP investigated.

The CHP is asking anyone who may have witnessed the crash or has other information regarding the crash to contact the CHP San Jose office at 408-961-0900.