PunkNews.org has reported more information on the Off With Their Heads tour cancelation:

As you are aware, the band recently and abruptly canceled a month-long tour in the middle of the trek, after arriving in Vancouver. Shortly thereafter, the band alluded to an accident involving the tour van. Details are still developing in this story. However, a 24 year old woman named Desiree was hit by the Off With their Heads tour van while a member of the band, or an associate of the band, was driving last Saturday night. Reportedly, the woman was dragged several blocks and suffered extensive injury. According to statements released by the woman’s friend Amber Jackman, Desiree was taken to Vancouver General Hospital and is facing life-threatening injuries. She will undergo multiple critical surgeries regarding injury to his face, leg, and other areas. Several surgeries have already been performed. After the accident, a member or associate of the band was taken into custody, and then later released. According to the police, alcohol is suspected as a factor in the accident.