Essex County OPP are investigating a serious crash in Tecumseh.

It took place on Walker Road south of Highway 401 near North Talbot Road around 10:30 a.m. Tuesday.

Police say four vehicles were involved including a tow truck.

Fire crews also had to clean a minor fuel spill.

Thankfully, police report only minor injuries.

The section of road between Black Acre Dr. and North Talbot Rd was back open to traffic by 11 a.m.