As in any motor vehicle collision, it is important to check on the status of anyone who was involved and provide any necessary aid. Emergency medical services may need to be called to provide immediate treatment. You should also contact the police and ensure that an officer comes to the scene and files a police report. If possible, you will want to gather evidence at the scene, including photos of the vehicles and the road, as well as the contact information of any witnesses. You should then contact an attorney to determine the next steps you should take.