An explosive device has been thrown at former Sinn Fein leader Gerry Adams’ house in west Belfast, the party has said.
In a statement the party added activist Bobby Storey’s house was also attacked.
The Police Service of Northern Ireland (PSNI) confirmed that it was investigating two incidents in west Belfast.
Mr Adams, a member of parliament in the Republic of Ireland, tweeted that no-one was hurt at his house.
Sinn Fein MLA Gerry Kelly said “these were reprehensible and cowardly attacks”.
“Grandchildren were in the driveway of Adams’ home minutes before the attack,” he added.