Shawn M. Williams, the Loudoun County supervisor who resigned his seat on Sunday, was charged with simple assault and unlawful entry. (Loudoun County Sheriff's Office/Loudoun County Sheriff's Office)

Loudoun County Supervisor Shawn M. Williams, who resigned his seat Sunday after his arrest on assault charges, issued a statement on Monday apologizing for his actions and acknowledging that he has an alcohol problem.

Williams, 44, was arrested after he barged into a neighbor’s home about 1 a.m. in the 21800 block of Wingfoot Court in Ashburn and confronted him. Police said Williams pushed his neighbor during the confrontation. He was charged with simple assault and unlawful entry and taken to the Loudoun County Adult Detention Center.

“On Saturday night, after a long neighborhood party, I confronted my good friend and neighbor after he gave me what I know was intended as friendly advice,” Williams (R-Broad Run) said in a statement released through his Facebook page and the county’s public affairs office.

“This poor decision highlights a personal shortcoming that can no longer be denied or compartmentalized. It has become painfully clear I need help with my alcohol abuse and I am getting professional help. Please keep my family in your thoughts and prayers at this time.”

Williams apologized to the neighbor and the neighbor’s family, as well as to his family, colleagues, other neighbors, friends and constituents.

Williams’s arrest follows a number of drunken-driving incidents and domestic disputes that led him to withdraw from this year’s race for board chairman.

Williams said a plan was underway to appoint a successor to fill his seat, although at least one supervisor has suggested that the post may remain open until the general election this fall.

Under Virginia law, the board may appoint a replacement within 45 days of the vacancy, county officials have said. An appointed board member would then serve until a special election can be held. In this case, however, there will be no special election, because the general election falls within 60 days of the end of the term to be filled.

The appointed board member may serve until the person elected in the general election as the supervisor for the Broad Run district takes office Jan. 1.

Ron Meyer, a public relations professional who is the Republican nominee to replace Williams after his term expires, said Monday that he did not want to be the appointee.

“Ultimately, I want our campaign’s ideas — especially to build a Greenway alternative — to be on an untainted ballot this Nov. 3,” said Meyer, a conservative who previously ran for state Senate.