UPDATE 3:40 p.m.- State DOT says the accident has been cleared and both lanes are now open

UPDATE 12:54 p.m.- The left lane is now open but the right lane remains closed.

A serious motor vehicle accident on the New York State Thruway has led to a temporary blockage of westbound traffic this morning.

As of 11:15 Wednesday morning, both lanes of westbound traffic between exits 33-34 are blocked due as police and emergency responders are arriving on scene.

WIBX has received reports that a helicopter has responded, likely to transport an injured party.

We'll provide more information as it become available.