The identities of four more victims of a fatal multi-vehicle collision two hours west of Thunder Bay have been revealed.

Brothers Brady and Andrew Ostell of Kitchener, Ont., 42-year-old Kyle Prince from Waterloo, Ont. and 44-year-old James Jackson of Fort Erie, Ont. were killed Saturday when the pickup truck they were travelling in collided with a tractor-trailer on Highway 17, east of English River.

Brady Ostell was 26-years-old and Andrew Ostell was 27.

A memorial service will be held this Saturday in Waterloo, Ont. for the two brothers.

An OPP spokesperson says the bodies of  the four victims arrived in Toronto Wednesday night for post-mortem examinations. 

Transport truck driver 43-year-old Sukhwinder S. Thandi of Cambridge, Ont. also died in the collision.

Two other commercial vehicles were damaged in the collision but no one else was hurt.