Police say an alleged carjacker died after crashing into a pole at School Road and Route 57 in Weston Tuesday.

Authorities say they received a call from an elderly woman who said a man stole her car at knifepoint on Highland Avenue in Rowayton at around 9 a.m. Police chased the suspect onto I-95 into Westport.

Police apparently lost track of the suspect in Westport, where he allegedly abandoned the first car and carjacked a Volvo. After police continued the pursuit, the suspect crashed into a utility pole.

Police say the suspect was pronounced dead at Norwalk Hospital.

Route 57 is expected to reopen Tuesday night or Wednesday morning.