A tour coach carrying 48 Dutch holidaymakers struck a safety barrier before flipping over and plunging down an embankment in eastern Switzerland, local police have confirmed, as Swiss President Guy Parmelin offered his condolences to the victims' families.

Cantonal police in Graubünden confirmed on X that several people died and multiple others were injured in the crash near the village of Susch at approximately 8:00pm on Thursday. A police spokesperson explained that authorities are withholding a precise casualty breakdown until all relatives have been informed.

Netherlands-based tour operator Oad, which organized the trip, said in a statement that it was "deeply shocked and devastated by the tragic accident" and is working with emergency services to support the passengers and their families.

The incident occurred on a mountain road connecting the villages of Susch and Zernez in the Engadine valley, the gateway to the Swiss National Park. Emergency crews, paramedics, and helicopters attended the scene, where the coach came to rest on its side on the embankment.

The General Dutch Association of Travel Companies (ANVR) confirmed that all 48 passengers on board were Dutch nationals. The group had departed the Netherlands on Monday and was on a day excursion to Switzerland from Austria when the vehicle left the carriageway.

An official investigation into the cause of the accident remains underway, and local police confirmed the road between Susch and Zernez remains closed. I will continue to follow this story closely and will update this report as further details are released.