Wildlife officials say they have killed the last two of four wolves believed to have been involved in livestock depredations on a ranch in the Sapphire Mountains east of Darby.

Liz Bradley, a wolf management specialist with Montana Fish, Wildlife and Parks, says federal Wildlife Services agents killed the wolves during a helicopter hunt Thursday and put a radio collar on another yearling male near the CB Ranch.

Earlier this month, government trappers caught and euthanized two other wolves in the Divide Creek pack. FWP issued a kill permit for up to four wolves from the pack several weeks ago after the death of a calf on the ranch was determined to have been caused by the predators.

The CB Ranch, which is owned by former Intel Corp. CEO Craig Barrett, paid for Thursday's helicopter operation.

Associated Press