Sinn Fein today said all sides involved in the Northern Ireland peace process had a duty to make political talks work.
The call comes in the wake of the failed car bomb attack in Birmingham city centre at the weekend.
Serious injury and damage was only avoided because the main charge failed to detonate. The bomb is thought to have been the work of the dissident terrorist group the Real IRA.
Sinn Fein said today it was clear there were still people opposed to the peace process. In a statement the party said: "It is incumbent on all of us in political leadership to make it clear that politics can work and politics can deliver change."
Asked later if the statement amounted to a condemnation of the car bomb, a party spokesman said: "We would condemn the attack and we would have no problem doing so."
Sinn Fein's statement came as detectives continue to investigate the 40 kilogramme bomb, which was planted in a beige Audi Coupe in Smallbrook Queensway on Saturday night.
CCTV footage released earlier this week showed pedestrians and motorists passing yards from the car before the detonator, placed in the boot, went off.
Detectives have established that the Audi, with the registration E303 TOV, was seen at junction 10 of the M6 near Walsall hours before the blast.
The car, which was bought in the Walsall area on Saturday afternoon, was spotted at that junction at 2.30 p.m.
PA