07/14/2013 04:38 EDT | Updated 09/13/2013 05:12 EDT

Vehicle sought after cyclist struck north of Toronto

York Regional Police are looking for a vehicle involved in a serious hit-and-run collision that has left a cyclist in critical condition in Georgina, Ont., about an hour's drive north of Toronto.

Police say that a male cyclist was found on Pollock Road, west of Kennedy Road, at about 4:45 a.m. Sunday.

A subsequent investigation has determined that a dark silver or dark grey Nissan was involved.

Police are asking the driver of the vehicle to come forward, as well as any witnesses.

Anyone with information is asked to contact investigators at 1-888-876-5423, ext. 7704, or to call Crime Stoppers at 1-800-222-8477.