Sinn Féin says the home of party leader Gerry Adams has been targeted by a bomb threat.
The Louth TD's home in Belfast was one of three premises threatened.
Sinn Féin MP Paul Maskey said the politicians had been informed of the threats by the PSNI.
He said the threats would not deter the party's elected representatives from their work.
"The threats indicated that devices were left at the homes of Gerry Adams and Cllr Jim McVeigh along with a device being left at my office on the Falls Road," Mr Maskey said.
“No matter what the intentions of whoever who made the threats those behind them will achieve nothing," he added.