Senior Hungarian government officials say one of the suspected ringleaders of last month's Paris attacks had traveled to Hungary, where he "recruited a team" from unregistered migrants passing through.
A government source later confirmed, on condition of anonymity, that the man was Salah Abdeslam, a key suspect in the Paris attacks, who is on the run.
The officials did not reveal whether the migrants Abdeslam picked up went on to take part in the mass killings in the French capital, claimed by the Islamic State group.