WASHINGTON (Reuters) – Deputy U.S. Energy Secretary David Turk will testify at Feb. 8 U.S. Senate Energy Committee hearing looking into President Joe Biden’s pause on new approvals for liquefied exports, the Energy Department said on Thursday.

The hearing was called by Senator Joe Manchin, a Democrat from natural gas producing West Virginia, who has promised to investigate the pause on approvals of exports of the fuel to big markets in Europe and Asia. Biden paused the approvals last week so that his administration can look into the environmental and economic impacts of the exports.