An election poster for Sinn Fein’s Michelle Gildernew has been set on fire at Milltown Street in Dungannon.
An image of the attack was posted on Twitter on Monday night.
It has been claimed that the poster was earlier attacked with paint.
A number of people took to social media to condemn the vandalism.
“Very sad - wether you agree with someone’s politics or not, vandalism is hardly the answer,” said one woman.
The attack comes just a week after it was confirmed that a decision to close the Moygashel polling station, would not be overturned, despite strong objections from unionists.
Ms Gildernew said; “This is the latest in a series of incidents involving my election posters and billboards.
“These attacks have followed personal attacks on me by representatives of the negative unionist alliance.
“It happened just hours after Sinn Féin held a successful election manifesto launch in the centre of Dungannon.
“This is clearly an attempt to attack the democratic process.
“Election posters and billboards from all parties should be treated with respect.
The current MP for Fermanagh and south Tyrone added: “These attacks will not deter me or any other Sinn Féin activists from delivering first-class representation, protecting communities from austerity.”