SAN FRANCISCO (CBS SF)_ A woman crossing the street in a crosswalk suffered a fractured skull in a hit-and-run collision in San Francisco’s Tenderloin neighborhood early Friday morning, police said.

The collision was reported at about 12:40 a.m. at the intersection of Turk and Taylor streets, about a block from Market Street, according to police.

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Based on the preliminary police investigation, it appears the victim, identified as a woman in her 60s, was walking in a crosswalk when a white vehicle struck her from behind.

The suspect vehicle did not stay at the scene following the collision, police said.

The pedestrian was transported to San Francisco General Hospital with a fractured skull.

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Police said her injuries are considered life-threatening.

Anyone with information about the suspect or suspect vehicle is urged to contact police and may do so anonymously by calling (415) 929-9446 or by texting a tip to 847411 with “SFPD” followed by the message.

Security cameras are installed at the intersection, which may help with the police investigation.

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