REVERE – Someone fired at least four bullets Saturday at a Franklin Street home, according to police, who are now investigating who did it.According to Capt. Michael Murphy, officers were patrolling the neighborhood when they heard about four gunshots around 11 p.m. Moments later, several neighbors called police.When the officers arrived at the scene, witnesses said someone fired four shots at 67 Franklin St. and a vehicle quickly fled the area, according to police.Officers found that one of the bullets was lodged into the house, while shell casings were found nearby, police said.Murphy says a dark-colored sedan was seen driving away from the crime with four men wearing white-colored t-shirts inside.Police continue to investigate the incident.