A car rolled over on Route 315 at Quarry Road in Simsbury and another vehicle crashed right behind it, according to the fire department.
The road is closed, but is expected to reopen shortly, according to police.
The driver is out of the vehicle that rolled over and no information was immediately available on injuries or road closures, but there are heavy delays eastbound.
This is one of several crashes on this rainy morning.
Follow NBC Connecticut Traffic Reporter Heidi Voight on Twitter for updates throughout the morning.