PARIS - French officials say they are seeking a second fugitive directly involved in the Paris attacks.

Three officials, who spoke on condition of anonymity because they were not authorized to provide details about the ongoing investigation, said Tuesday that an analysis of the series of attacks on Nov. 13 indicated that one person directly involved was unaccounted for.

Seven attackers died that night - three around the national stadium, three inside the Bataclan concert venue, and one at a restaurant nearby. A team of gunmen also opened fire at a series of nightspots in one of Paris' trendiest neighborhoods.

French and Belgian authorities have issued a warrant for one person, Salah Abdeslam, whose brother was among the attackers. The officials say the second fugitive has not been identified.