Three people were killed in two separate overnight car crashes in Quincy and Saugus.

 

Around 1:30 a.m. in Quincy, a Mercedes crashed into a tree and caught fire on Route 28, WCVB reported. The driver and a front-seat passenger were trapped and suffered fatal injuries, but authorities managed to take the backseat passenger to Boston Medical Center.

 

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In a separate incident at approximately 4:30 a.m., a Volvo station wagon flipped onto its roof in the northbound lanes of Route 1 in Saugus, CBS has reported.

 

The cause of that crash remains unclear, CBS added.