FAIRFIELD (CBS13) — A deadly motorcycle crash shut down a portion of Waterman Boulevard in Fairfield on Sunday evening, police said.

The Fairfield Police Department said the collision between a vehicle and motorcycle happened at around 4 p.m.

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The unnamed motorcyclist has been pronounced dead, authorities said. The cause of the crash remains under investigation.

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Police said Waterman Boulevard from Hillborn Road to Airbase Parkway at Heath Drive will remain closed for an extended period of time.

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No further details have been released.