Ontario provincial police say seven people, including four children, were injured in a collision Thursday evening.

The two-vehicle crash occurred just after 7 p.m. near Dunnville, about 40 kilometres south of Hamilton.

The OPP says the four children and two adults from one vehicle were taken to a local hospital with serious but non-life threatening injuries.

The lone male in the second vehicle was also taken to hospital with non-life threatening injuries.

Police have not indicated what may have caused the crash on Highway 3, nor if charges are being considered.

Anyone who may have seen the collision is asked to contact provincial police.