The FBI has arrested a man believed to be responsible for the April 12 robbery at the Bank of American at 7 Sedgwick Avenue, as well as 10 other bank robberies throughout New England, according to Special Agent Gail A. Marcinikiewicz.

"We do have an individual in custody named Robert Ferguson for a bank robbery that happened in Orono, Maine, and the investigation is continuing to determine whether he is connected to the other 10," Marcinikiewicz said Thursday afternoon.

"His description is very similar to [the suspect]. That being said, just because his description matches doesn't necessarily mean he is," she said. "It is incumbent upon us during the course of our investigation to link him to the other bank robberies."

Darien Police Capt. Komm said he is confident that Ferguson, 47, of Lowell, Mass., is responsible for the Darien robbery.

According to the FBI, the suspect is believed to have been involved in nine bank robberies throughout New England in addition to Tuesday's heist in Maine and the Darien incident. The related robberies took place in Fitchburg, Tewksbury, Tyngsboro and North Attleboro, Mass.; Londonderry, Merrimack and Hampstead, N.H.; Warwick, R.I.; and Somers and Darien, Conn., according to the FBI.

According to Marcinikiewicz, the FBI has been looking for a suspect, who has been nicknamed the "Burly Bandit." Throughout the string of robberies, the bandit has concealed his face in a variety of ways, using sunglasses, a wig and various hats, including a cowboy hat and the blue yarmulke he wore in the Darien robbery, according to a statement prepared by Marcinikiewicz.

The yarmulke was recovered by Darien Police, along with the pea coat worn by the suspect during the incident. But the man took off with more than $4,000, according to local authorities.

No weapons were displayed during the Darien incident, though there was a note, Sgt. Jeremiah Marron said at the time of the original incident.

According to the FBI, the man responsible for the robberies has made threats to kill bank tellers and brandished a weapon. The release prepared by Marcinikiewicz describes the suspect as a white male in his late 40s to early 50s, approximately 6 feet tall, weighing between 250 and 300 pounds with short brown hair.

"Members of the [Darien] detective division this past week traveled up to Massachusetts to work with an FBI office in Boston, and to work with agencies experiencing similar robberies," Marron said Wednesday evening.

"We've obviously been in contact with the people that arrested him and based on the information we have, we feel confident it's our guy," Komm said.