Gov. Frank Murkowski instituted a state hiring freeze Wednesday because of the millions of dollars Alaska is losing in tax revenue and royalties due to the Prudhoe Bay oil field shutdown, the Associated Press reports.

The governor also said he would direct the attorney general to investigate the “state’s right to hold BP fully accountable for losses to the state.”

Murkowski made the announcement three days after BP said it would shut down a Prudhoe Bay oil field after a small leak was found. Energy officials have said pipeline repairs are likely to take months, curtailing Alaskan production into next year.