Essex County OPP cruisers block Highway 401, following a tractor trailer collision with an unmarked Chatham-Kent police vehicle. (Gina Chung/ CTV Windsor)

LAKESHORE, Ont. - One person is dead following a crash at Lakeshore.

Essex OPP were called to Highway 401 east near Manning Road about 10 p.m. Saturday.

They say a pedestrian was struck by a vehicle on the highway.

The 401 was closed for about two and a half hours for the investigation.

Police say no charges will be laid.