Trump's Massachusetts campaign HQ vandalised with graffiti

The graffiti included a phrase with an expletive and the word 'Nazi'

Republican Presidential front-runner Donald Trump's Massachusetts campaign headquarters has been vandalised with obscene graffiti and the word "Nazi" spray-painted on it.

Trump's Massachusetts campaign headquarters in Littleton was discovered vandalised with graffiti and obscenities yesterday.

A Littleton police officer in a marked cruiser near the town common was approached by a woman who reported the vandalism, according to a police statement.

The graffiti, scrawled in red and orange paint across the wall and windows of the campaign headquarters on King Street, included a phrase with an expletive and the word "Nazi", the Boston Globe reported.

"These types of acts are surprising and certainly not representative of the kind of town that Littleton is and the kind of people who live in this community," Littleton Police Chief Matthew King said in the statement.

"People have a right to express their views and disagreements, but the line is drawn at criminal behaviour and vandalism," King said.

Police plan to review surveillance footage in the area, including a nearby gas station, according to the statement.

The Republican presidential candidate's headquarters opened in December in Littleton, said Dean Cavaretta, director for Trump's Massachusetts campaign.

"We've had some outstanding volunteers come by and clean (the graffiti) up since," Cavaretta was quoted as saying.

The campaign headquarters is located inside the historic Conant Building, a large commercial building which also houses other businesses.

The report about the vandalising of Trump's Massachusetts campaign headquarters came a day after a Muslim woman was kicked out of Trump's presidential campaign rally in South Carolina on Friday after staging a silent protest against the Republican front-runner, who has called for a ban on Muslims entering the US.

Trump's campaign has been marked by a number of controversies from his comments on Muslims to the alleged mocking of a journalist's physical disability during a campaign rally.