A Burnaby, B.C., man charged in the deaths of a pair of Ontario men who were found in the trunk of a car is facing additional charges.

Durham police say Vijay Singh, 29, is now facing 34 new charges in connection with firearms and explosive materials discovered as part of the investigation.

Singh was arrested in British Columbia in February and charged with two counts each of first-degree murder, kidnapping, forcible confinement and using a firearm in the commission of an indictable offence.

Harjinder Singh Sandhu, 28, of Brampton, and Puneet Singh Chhina, 26, of Ottawa, were found dead inside a rental car that was abandoned in Pickering, Ont., on May 5, 2009.

Police have made several arrests in the killings.

John Le, 38, of Markham, Ont., has been charged with two counts each of first-degree murder, kidnapping, forcible confinement and using a firearm in the commission of an indictable offence. He was arrested in January.

Ganesh Singh, 56, the father of Vijay, was arrested on April 21 and charged with a single count of being an accessory after the fact to murder.

Police also issued a Canada-wide warrant for Zaki Goffur, a 34-year-old Richmond Hill man who is charged with being an accessory after the fact to murder. He is believed to be outside of Canada.

Vijay Singh's latest charges stem from the announcement on April 1 that police had found a cache of explosives in east-end Toronto that was linked to the case.

Police say they also conducted a search of a residence owned by Singh, which led to the seizure of firearms and ammunition.