Ugly Truth co-stars Katherine Heigl and Gerard Butler were reportedly evacuated from the Four Seasons Hotel in Beverly Hills after a bomb scare Sunday afternoon.

The stars were promoting their new movie at the Los Angeles hotel when they were quickly ordered to exit along with 400 other guests.

According to PEOPLE, Butler and Heigl greeted fans and posed for pictures outside as the investigation got underway inside the luxurious establishment. Everyone was allowed back inside the building after a two hour hunt failed to turn up any suspicious packages.

The Ugly Truth hits theaters July 24.