Police in Northern Ireland have yet to publicly attribute responsibility for the attack on the home of Gerry Adams.
Explosive devices that officers described as large industrial fireworks were hurled at the west Belfast homes of Mr Adams and fellow senior Sinn Fein figure Bobby Storey on Friday night.
No-one was injured, though a car in the former Sinn Fein president’s driveway was damaged.
Sinn Fein has blamed dissident republicans.
Party president Mary Lou McDonald said on Monday that the police shared that assessment.
On Tuesday, when asked for its views on who was behind the incidents, the Police Service of Northern Ireland declined to single out any grouping, instead stating that a “number of lines of inquiry” remained open.
“This is a live investigation and police are following a number of lines of inquiry,” said a PSNI spokeswoman.
“It would be inappropriate to comment any further at this stage.”
On Monday, Mrs McDonald said Sinn Fein members were reviewing their security in the wake of the attacks.
“The police and ourselves share the same analysis on these events,” she said.
“It is the work of violent dissidents who wish to destabilise and go against the democratic wishes of the majority for peace and for advancement.”
Hundreds of people attended a rally in west Belfast on Monday evening to demonstrate support for Mr Adams and Mr Storey.
At the event, Mrs McDonald branded the dissidents as “enemies of the people”.