AURORA - Two York Regional Police officers have been charged in a 10-month corruption investigation that police say led to drug-trafficking charges.

York Regional Police say a constable from Markham, Ont., faces 30 charges including attempted armed robbery of cocaine, theft of a police shotgun and trafficking cocaine and steroids.

Police allege the accused interfered in the prosecution of provincial offence notices and disclosing confidential police information.

York regional police say a constable from Whitchurch-Stoufville, Ont., has been charged with breach of trust and unauthorized use of a police computer.

They say he has been suspended with pay and the other officer was held in custody pending a court appearance Thursday and will be suspended with pay if he's released.

York Chief Eric Jolliffe says the investigation was difficult and also led to charges against five others.