At least two people were wounded in a knife attack Friday near the former offices of the satirical newspaper Charlie Hebdo in Paris, police said Friday. A suspect has been arrested.

Police initially announced that four people were wounded in the attack, but the official told The Associated Press that there are in fact only two confirmed wounded. Police could not explain the discrepancies.

A Paris police official said that while authorities initially thought two attackers were involved, they now believe it was only one person, who was detained near the Bastille plaza in eastern Paris.

It is unclear what motivated the attack Friday or whether it had any link to Charlie Hebdo, which moved offices after they were attacked by Islamic militants in 2015.

AP reporters at the scene of Friday's police operation saw officers flooding into the neighborhood, near the Richard Lenoir subway station. Police cordoned off the area including the former Charlie Hebdo offices after a suspect package was noticed nearby, according to the police official. No explosives were found in the suspect package France info radio said, citing police sources.

The trial in the Charlie Hebdo attacks is currently underway across town. Murmurs broke at the terrorism trial of 14 people, including 3 fugitives, accused of helping the attackers in the January 2015 killings, as the news filtered through. The widows of the Charlie Hebdo attackers are scheduled to testify Friday afternoon.