NEWPORT – A man has been arrested in connection with a robbery at TD Bank on March 31, police said Thursday.

Bo H. Rodden, 19, most recently of Berwick, was being held Thursday at the Strafford County Jail in Dover, N.H., said Lt. Randy Wing, the investigating officer for the Newport Police Department.

Wing said Rodden was arrested around midnight by police in the Dover area, where he faces charges of aiding in the robberies of at least four other banks. Rodden was arraigned and held in lieu of $200,000 cash bail. He is due in a New Hampshire court Wednesday and an extradition hearing is pending.

Also arrested was an alleged accomplice, Christopher M. Hildreth, 22, of Kittery, who was being held at the York County Jail in Alfred. Hildreth, who also faces a charge of possession of heroin, is not suspected of being involved in the Newport robbery, Wing said.

The Newport robbery was reported shortly after the bank opened at 9 a.m. on March 31. Police said a man wearing a white hat walked into the bank and handed a woman teller a note indicating that he had a weapon and wanted money. No one at the bank saw a weapon, police said, and nobody was injured.

The man left the bank with an undisclosed amount of money in a bag, leaving the hat behind.

The most recent robberies allegedly involving the two York County men occurred Tuesday, Wing said, when police said Hildreth entered a TD Bank in Dover and handed a teller a note, making off with an undisclosed amount of money.

About four hours later Tuesday, a similar bank robbery occurred at a TD Bank in Farmington, N.H.

Rodden and Hildreth are also suspects in the robberies of Ocean Bank in Stratham, N.H., on April 5 and Citizens Bank in Rollinsford, N.H., on Monday, Wing said.

In one of the New Hampshire robberies, Rodden wore a “bucket-style fishing hat,” similar to the one the suspect wore in Newport, Wing said.

Rodden was arrested on a warrant and on charges of conspiracy to commit robbery stemming from the New Hampshire heists.

Wing, who was on his way to New Hampshire on Thursday, said he still needed to interview Rodden as part of his investigation into the Newport robbery.