SAN DIEGO -- A woman gave birth Thursday while stuck in traffic in the Mount Soledad area because of a multi-vehicle crash, according to the California Highway Patrol.

Five people were injured in the crash that involved at least four vehicles on Interstate 5, between state Route 52 and Gilman Drive, shortly before 8 a.m.

Lanes were closed as emergency crews cleared the wreckage, and state Route 52 also was backed up, the CHP reported.

Shortly after 8:30 a.m., a pregnant woman on the way to her doctor got off state Route 52 at Regents Road and gave birth in a parking lot at Marian Bear Memorial Park, before paramedics could reach her.

Mother and baby appeared fine but were taken by ambulance to a nearby hospital to be checked out, she said.

Five people were injured in the crash, two seriously, and four were taken to hospitals, according to a San Diego fire-rescue dispatcher.