A driver crashed into a pole and a tree while trying to evade police on Saturday, seriously injuring herself, authorities said.

According to the Suffolk County Police Department, a 3rd Precinct officer attempted to pull over Alyssa Leppert in a cul-de-sac on Kurt Lane in Hauppauge at about 4:40 p.m., after observing her driving a Chevy TrailBlazer erratically. However, police said, Leppert attempted to get away from the officer by driving on the lawns of multiple houses, causing damage to several lawns, in order to get back onto Route 111.

A few minutes later, police said, Leppert was driving north on Route 111 and lost control of the Chevy, struck a telephone pole, and then hit a tree about 20 yards south of Route 347. The SUV came to a stop at the intersection of Route 111 and Veterans Memorial Highway.

Leppert, a 22-year-old East Northport resident, was in critical condition at Stony Brook University Hospital.

Detectives are investigating the incident.

Leppert has previous, unrelated charges pending against her, including attempted criminal possession of a controlled substance. Attorney information for the defendant was not available.