Debris found during search and rescue efforts after Alaska helicopter crash, authorities say

Search and rescue crews found debris in a lake matching an overdue helicopter that was carrying three Alaska Department of Natural Resources employees who failed to check in, officials said.

The department initiated a search and rescue effort on Friday and was informed helicopter debris matching the description of the overdue aircraft had been located in a lake.

"At this time, we do not have any additional information to share. DNR is praying for our employees and the pilot, their families, and the DNR team. We are continuing to await updates from the search and rescue effort," Alaska DNR said in a statement.

CNN's Ashley R. Williams contributed to this report.