A notorious stretch of Bussell Highway claimed two lives on Sunday when a Perth couple died after being involved in a “shocking” head-on collision. Major Crash Investigators are calling for information about the crash that killed Willagee couple Jim and Sabine Mather and seriously injured two others. About 1.05pm a grey Skoda Yeti driving north and a Toyota Landcruiser towing a caravan driving south collided near the intersection of Hutton Road, Capel. Mr Mather, 36, the driver of the Skoda, and 31-year-old Mrs Mather died at the scene on the day after their wedding anniversary. The male driver of the Landcruiser was taken to Bunbury Hospital and his female passenger was flown to Royal Perth Hospital. They were reunited when he was transferred to RPH yesterday afternoon, and both last night were in a stable condition in the State Trauma Unit. Several road users who came across the crash site described it as “horrific”. One driver said, “The car was an absolute mess ... I wish I didn’t see it.” South West District Superintendent Geoff Stewart said it was important people reached out for help if they were affected by what they saw. “It was shocking and traumatic for anyone that saw the immediate aftermath of the crash,” he said. “Now, like a number of people have had to do this year in the South West, there are going to be two funerals. The 17km section of Bussell Highway where the crash took place was previously voted WA’s riskiest road in an RAC survey and is currently undergoing work for Stage 1 of its duplication. Capel police officer-in-charge Sgt Chris Page said the crash was a “tragic outcome” that served as a reminder for the importance of driver awareness. “We want everyone to make it to and from their destinations safely,” he said. The weekend’s wet weather also reinforced the need to drive to the conditions, Sgt Page said. Five of the nine officers at the newly-opened Capel station will be focussed on traffic enforcement to help ensure road safety. “Hopefully having a more visible police presence in the area will have an impact on driver behaviour,” Sgt Page said. Police said the investigation was in its early stages and anyone with information should contact them.