MARIETTA – ( WAOK/AJC) – The FBI and other agencies are now investigating whether two suspicious fires at different doctors’ offices are related. The latest fire occurred Wednesday at a OB-GYN’s office in Marietta. The other was reported, Sunday, at a doctor’s office in Lilburn, located in Gwinnett County. Investigators say witnesses reported seeing several men going into the Marietta office, shortly before the fire broke out. And anti abortion protesters have been known to march outside the Marietta location. Police have released a picture of a man, from a nearby bank, seen near the Marietta doctor’s office, around the time of the fire. Investigators are not saying exactly why they believe the two fires may be connected, only saying that the type of practice and the time of the fires are similar.