The bar at Strangers’ Dining Room in the U.K. parliamentary estate will close temporarily while officials review safety and security measures following reports of a drink being spiked, The Guardian reported. On Jan. 7, a parliamentary researcher reported to the Strangers’ staff that her drink had been tampered with, Politico reported earlier this week. The bar is located in the Palace of Westminster and serves members of Parliament, their staff and guests. On Wednesday, Metropolitan Police told Politico they were investigating the incident but hadn’t made any arrests. Starting next Monday, the bar will close for a safety review. “The safety of everyone on the estate remains a key priority of both houses,” a spokesperson for the House of Commons told The Guardian. The drinking culture at Westminster has come under fire in recent years, with one watchdog group calling it a “frequent factor” in cases of workplace harassment and abuse. Some members of Parliament even reportedly leave their drinks unattended at the bar while they go vote, then return to them after. A spokesperson for Prime Minister Keir Starmer told Politico that particular habit was “clearly… not sensible” and described the spiked drink as “incredibly concerning.”