A woman riding her bicycle in Dorchester on Wednesday night was seriously injured in a hit-and-run crash on Geneva Avenue, Boston police said.

The woman was initially considered to have suffered life-threatening injuries, but her condition has improved since being rushed to a Boston-area hospital for treatment, police said.

The incident happened around 10:30 p.m. while the woman was on Geneva Avenue near the intersection with Waldeck Street, according to Officer Rachel Maguire, a department spokeswoman.