A Rensselaer County assistant district attorney resigned Sunday after being charged with driving while intoxicated.

District Attorney Joel Abelove said in a statement that Guilderland police charged Seamus Donnelly.

Abelove did not provide details on the incident, including where in Guilderland it happened or when it happened. Abelove said he learned of the incident on Saturday.

Guilderland police told the Times Union Sunday they did not have details readily available about the arrest.

The resignation is one of a series of problems continuing to face Abelove's office.

He said in Sunday's statement that Donnelly's departure would be a strain on his staff.

A Times Union examination of the DA's office in December found that hundreds of felony cases were never presented to a grand jury, and nearly 40 percent were dismissed when they were returned to local municipal courts as a result of the inaction.

Abelove has since said that his office has started using an electronic tracking system to keep a better handle on the office's caseload.

On Thursday, a state Supreme Court justice released the alleged mastermind of a double homicide after the Rensselaer County district attorney's office could not compile the evidence needed to corroborate testimony by an accomplice who linked him to the 2016 killings.

Abelove himself was indicted by a grand jury on perjury and official misconduct charges for his alleged botched handling of the fatal Troy police shooting of a Watervliet man in April 2016. The charges were handed down by a grand jury convened by then state Attorney General Eric Schneiderman's office.

In June, acting state Supreme Court Justice Jonathan D. Nichols of Columbia County threw out the charges, saying the state attorney general's office had exceeded its investigatory authority under state executive law and did not have the statutory jurisdiction to prosecute Abelove on charges of felony perjury.

In the statement Sunday about Donnelly's arrest, Abelove said he has no tolerance for drinking and driving.

“I must ensure that those who are charged with holding people responsible for drinking and driving do not undermine that mission,” Abelove said in the statement.

His salary with the district attorney’s office was $63,750. He could not be reached for comment Sunday.

(A previous version of this story incorrectly reported Seamus Donnelly ran for city council in Troy. There are two people with the same name.)