MANORVILLE - Police are investigating after an accident on Route 111 this morning left two people dead and another two in critical condition.

Officials say a Honda Accord being driven by 30-year-old Keri Trinca with her three children aboard was struck by a white van on Route 111 and Ocean View Boulevard around 8:30 a.m.

Trinca and her 7-year-old son were killed in the crash. Her 4-year-old daughter and 2-year-old-son remain in critical condition at Stony Brook University Medical Center, according to investigators.

Police say the driver of the van, Steven Vonfricken, and his passenger were not seriously injured in the crash.