An Iraqi criminal court on Sunday sentenced to death 15 Turkish women after finding them guilty of belonging to the Islamic State group, a judicial official said.
One of two would-be attackers arrested in January had planned to hit a "major sporting facility", Interior Minister Gerard Collomb said.
Authorities in Podgorica have not released any theories as to the motive for the attack in the country which recently joined Nato despite opposition from some of the population.
Rakhmat Akilov, the man charged with a deadly truck attack in Stockholm last year that claimed five lives, said Tuesday that his motive was to force Sweden to stop supporting the fight against Islamic State.
Ten other women of various nationalities were sentenced to life in prison, he said. All the verdicts can be appealed.
The killing of a senior Algerian militant by special forces soon after he slipped into Tunisia has raised concern that al Qaeda is trying to regroup in the North African state as rival Islamic State has suffered major setbacks, security sources say.
The prime surviving suspect in the Islamic State attacks in Paris that killed 130 people refused to answer questions when his trial for a later shooting incident opened on Monday in Belgium.