PARIS — Police arrested two more people over an attempt to place a homemade explosive device outside the Paris headquarters of Bank of America. Two further arrests were made on Saturday night.

A suspect was arrested around 3:30 a.m. on Saturday while attempting to place a homemade explosive device outside the Paris Bank of America headquarters. The Bank of America headquarters in Paris is near the Champs-Élysées.

The suspect was accompanied by a second person who appeared to be taking photos and video with a cell phone. The second person fled when police arrived.

The National Anti-Terrorist Prosecutor's Office has opened an investigation into charges of attempted arson or dangerous damage in connection with a terrorist enterprise, manufacture of an incendiary or explosive device in connection with a terrorist enterprise, possession and transport of an incendiary or explosive device with the intent to prepare dangerous damage in connection with a terrorist enterprise, and terrorist conspiracy, the National Anti-Terrorist Prosecutor's Office said. The Paris police and France's domestic intelligence service are also investigating the incident, the prosecutor's office said.

The arrested suspect said he had been recruited through Snapchat to carry out a bombing in exchange for about $692, according to police. Police said the suspect said he was a minor from Senegal. Officials are working to verify the suspect's identity.

Police did not specify who the two additional arrestees were or what roles they may have played in the attempted bombing. The investigation remains ongoing as authorities work to determine the full scope of the planned attack.