A crash in Yarmouth on Interstate 295 has slowed northbound traffic to a crawl, according to the Maine Turnpike Authority. Cars are backed up between exit 15 and exit 17, according to a Turnpike Authority tweet. The Turnpike Authority has recommended motorists use Exit 15 to avoid the area. The crash was reported about 2:20 p.m., and no one was injured, according to a state police dispatcher.