Police in London, Ont., say an 18-year-old man has been shot and killed after tracking down his lost cellphone.

Investigators say Brampton, Ont. native Jeremy Cook left his cellphone in a taxi early Sunday morning, but was able to track its location to an address in the city's north end.

Police say Cook and a relative approached a car occupied by three men around 5:15 a.m.

When the vehicle began to drive away, police say Cook grabbed the driver's side door.

Police say shots were fired and say they found Cook dead nearby with multiple gunshot wounds.

Police are looking for three suspects in connection with the killing.