A serious road traffic collision in the west of Ireland’s County Donegal has left two men dead and four other people injured, after a crash between two vehicles on Saturday afternoon. The tragedy unfolded just after 2:00 PM local time on the N15, a key arterial route connecting the towns of Donegal and Ballybofey, at the Birchhill stretch of the highway. The two victims, one man in his 20s and a second man in his 30s, were both occupants of the same vehicle. Emergency responders arriving at the scene pronounced both men dead shortly after the incident. Four additional people involved in the collision sustained non-life-threatening injuries, according to initial updates from Irish law enforcement. The injured group comprises two pairs: a young man and woman in their 20s, and an adult man and woman in their 40s. All four have been transported to Letterkenny University Hospital to receive ongoing medical care for their wounds. In the immediate aftermath of the crash, An Garda Síochána, Ireland’s national police service, confirmed that it has launched a full investigation into the cause of the incident. Forensic and collision investigation teams have carried out a detailed forensic examination of the crash site, and the entire N15 route through Birchhill remains closed to all traffic to preserve evidence while the investigation proceeds. Police have issued a public appeal for any witnesses who were traveling through the area at the time of the collision to come forward with information. Investigators are particularly eager to review dash-cam footage captured by any drivers who passed the location shortly before or after the crash, which could provide critical context for determining the sequence of events that led to the fatal incident.