BATON ROUGE (AP) — Louisiana agencies have spent $11 million so far on response efforts to the massive sinkhole in Assumption Parish.

The Legislative Fiscal Office released the updated figure this week, saying most of the money was spent by the Department of Natural Resources on an outside contractor that is doing testing and drilling at the site.

The state is seeking reimbursement of its response spending from Texas Brine, because officials say the sinkhole was caused by the collapse of a salt dome cavern operated by the company.

The company hasn’t repaid the state for its costs, and the attorney general’s office sued Texas Brine earlier this year.

The sinkhole was discovered in August 2012 in a swampy area around Bayou Corne. About 350 residents in the community remain under an evacuation order.