SPOKANE, Wash. (AP) — The state has launched a poaching investigation after two Stevens County deputies stumbled upon four dead wolves in northeast Washington in February while on snowmobile patrol near the Canadian border. Some environmental groups contend the animals were poisoned, although they haven’t offered any evidence to support that allegation. The Spokesman-Review reported Thursday the wolves were in the territory of the Wedge Pack. Rumors of the deaths have been swirling in eastern Washington for months. On Wednesday, the Kettle Range Conservation Group issued a statement claiming the wolves were poisoned. The state Department of Fish and Wildlife says it is investigating the case but provided no additional information.