A 35-year-old man has been arrested on suspicion of criminal damage after explosive devices were thrown at the home of former Sinn Fein leader Gerry Adams.
The Police Service of Northern Ireland (PSNI) said the man was detained on Tuesday and was in custody.
The homes of Adams and senior Sinn Fein figure Bobby Storey were attacked on Friday night, with the republican party condemning the "reprehensible and cowardly" attacks.
No-one was injured, but a car in the driveway of Mr Adams' home was damaged.
The PSNI previously said officers had seized "remnants of large industrial, firework-type devices, capable of causing serious damage or injury" at two houses in west Belfast.
Mr Adams said he was "very, very thankful" that no-one was hurt.
Party president Mary Lou McDonald said on Monday that Sinn Fein members were reviewing their security in the wake of the attacks.
Australian Associated Press
