Ypsilanti police are trying to determine whether a woman was under the influence of drugs when she was driving recklessly and almost collided with two vehicles near North Huron and West Cross streets Tuesday.
The 42-year-old woman was traveling at a high rate of speed in a Ford Fusion and was "weaving in and out of traffic" at about 4:45 p.m., according to a police log.
Two motorists blocked her car in at the intersection and called police.
The woman was taken to St. Joseph Mercy Hospital for treatment. Officers obtained a search warrant for blood samples to determine whether she was under the influence of drugs.

AnnArbor.com