The home of a woman accusing failed senate candidate Roy Moore of sexual assault has burned down in a suspected arson attack.

Tina Johnson, who made allegations the former judge “grabbed” her in his office during an incident in 1991, saw her home in Gadsden, Alabama, destroyed during a fire on Tuesday.

Etowah County Sheriff’s Office confirmed it was treating the incident as arson, but said investigations suggested the fire was not related to the Republican.

In a statement, Sheriff Todd Entrekin said: “The Etowah County Arson Task Force and Etowah County Sheriff’s investigators are looking into a recent house fire.

“Investigators are speaking to a person of interest. Warrants have not been obtained in this case.

“The ongoing investigation does not lead us to believe that the fire is in any way related to Roy Moore or allegations made against him.

“More details will be released when warrants are obtained.”

One neighbour, Kevin Tallant, told local news site AL.com he believed a young man seen walking around the house at the time of the incident was responsible for the blaze.

"He's been trouble in the neighbourhood for a while,” he added.

Ms Johnson is understood to now be living with her family in a motel.

A crowdfunding campaign, set up by former Barack Obama White House staffer, Katie Jacobs Stanton, has since raised more than $60,000 (£44,000) towards costs of rebuilding the home.

Alabama Senate race: Roy Moore vs Doug Jones Show all 12 1 /12 Alabama Senate race: Roy Moore vs Doug Jones Alabama Senate race: Roy Moore vs Doug Jones Democratic senatorial candidate Doug Jones speaks to reporters after voting Getty Images Alabama Senate race: Roy Moore vs Doug Jones Republican Senatorial candidate Roy Moore (L) and his wife Kayla ride their horses to the polling station to vote AFP/Getty Images Alabama Senate race: Roy Moore vs Doug Jones David Watson waves in a Santa suit as he holds a Doug Jones sign AP Alabama Senate race: Roy Moore vs Doug Jones Republican Senatorial candidate Roy Moore speaks to the media as his wife Kayla (R) looks on AFP/Getty Images Alabama Senate race: Roy Moore vs Doug Jones Democratic Alabama Senate candidate Doug Jones casts his vote at Brookwood Baptist Church REUTERS Alabama Senate race: Roy Moore vs Doug Jones Roy Moore speaks to the media after he rode in on a horse to vote AP Alabama Senate race: Roy Moore vs Doug Jones Democratic candidate Doug Jones greets supporters after casting his ballot AP Alabama Senate race: Roy Moore vs Doug Jones Republican Senate candidate Roy Moore departs on horseback after he cast his ballot in Gallant REUTERS Alabama Senate race: Roy Moore vs Doug Jones Voters wait in line to cast their ballot at a polling station setup in the St Thomas Episcopal Church Getty Images Alabama Senate race: Roy Moore vs Doug Jones Democratic Senatorial candidate Doug Jones (L) greets voters outside of a polling station at the Bessemer Civic Center Getty Images Alabama Senate race: Roy Moore vs Doug Jones Voters exit after casting their ballots at a polling station setup in the Fire Department Getty Images Alabama Senate race: Roy Moore vs Doug Jones Democratic Alabama U.S. Senate candidate Doug Jones speaks with the media after casting his vote at Brookwood Baptist Church Reuters

Mr Moore, 70, has yet to concede his senate defeat to Democratic rival Doug Jones in the Alabama special election on December 12 last year, despite calls from previous supporter, US President Donald Trump, to admit defeat.

His campaign to fill the US Senate seat left vacant by Attorney General Jeff Sessions was dogged by controversy, including numerous claims he sexually assaulted woman and young girls several decades ago while serving as a local prosecutor.

Mr Moore has repeatedly denied the allegations, dismissing them as an attempt by critics to undermine him.