Two young children were critically injured Tuesday morning in Ridge when a car driven by their mother attempted a left turn onto eastbound Route 25 from Randall Road and collided with another vehicle, Suffolk police said.

The girls, aged 5 and 6, were transported to Stony Brook University Hospital after the crash where they were listed in critical condition, police said. Their mother, Lindsay Brown, 39, of Ridge, was also being treated at the hospital for non-life-threatening injuries, police said.

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Brown was driving a 2005 Suzuki southbound on Randall Road at about 6:35 a.m., police said, when she turned left onto eastbound Route 25 and collided with a 2000 BMW headed westbound driven by Mark Helupka, 29, also of Ridge.

Helupka was not injured in the crash and police impounded both vehicles for safety checks as their investigation continued, officials said.

Anyone with information about the crash should call the seventh squad at 631-852-8752.

With Gary Dymski