A rental car with Belgian license plates that had last been seen near the Bataclan – a concert hall that was the site of the bloodiest violence in Paris on Friday – was sought by authorities in several raids.
“There were arrests relating to the search of the vehicle and person who rented it,” Minister Koen Geens said, according to CBS.
The Paris attacks on Friday night have left at least 128 people dead, according to French media.
It was not yet clear Saturday if the full scope of the attacks – including how it was organized and avoided detection, and possible accomplices in or outside of France – had been determined, according to the New York Times.
The eight attackers in Friday’s violence are all dead, according to the Times.
“It is an act of war that was prepared, organized and planned from abroad, with complicity from the inside, which the investigation will help establish,” President Francois Hollande said in an address to the nation.
The Islamic State (ISIS) claimed responsibility in a press release for the attacks.
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“We are crying with you. Together with you, we will fight against those who have carried out such an unfathomable act against you,” German Chancellor Angela Merkel said, according to the Times.
A French man was also detained Saturday and questioned by police in the U.K., in an abundance of caution, after he was accused of attempting to discard a firearm-like device in an airport before going through security, the BBC reports.
A Gatwick Airport terminal, in Sussex, was evacuated and closed for several hours as authorities conducted a controlled explosion on the item, according to the BBC.
“Personal items and what appears to be a firearm” were recovered, Sussex police told the BBC.
The man, a 41-year-old from central France, was “being interviewed as we try to determine the circumstances of the incident, but at this time it is too early to say what his intentions, if any, were,” a police spokesman told the BBC.
“However, given the events in Paris on Friday evening, there is heightened awareness around any such incident and it is best that we treat the matter in all seriousness,” the spokesman said.
There have been no reports of a link between the man’s activities, or the accusations against him, and the Paris attacks.