TORONTO (AP) — Toronto police announced the arrests Thursday of a 19-year-old man and a 15-year-old boy in the second shooting at the U.S. Consulate in five months, alleging the attack was part of a gun-for-hire network. The latest shooting in July followed a March 10 attack on the diplomatic mission that also occurred before dawn. Police arrested two people in that case in June. No one was injured in either shooting.The Royal Canadian Mounted Police also opened a parallel investigation, treating the shooting as a national security incident. Police said they believe the suspects were recruited through an encrypted messaging app and were offered money to open fire on the consulate. “There has been significant public interest and speculation about who is behind these crimes,” Police Chief Myron Demkiw said. “That remains a key focus of our investigation.”

Police identified the adult suspect as 19-year-old Xen-Ul-Abdeen Syed, who faces multiple firearm, arson and stolen-property charges, as well as a charge of attacking the premises of an internationally protected person. A 15-year-old also was charged but cannot be identified under Canadian law.Since the first shooting, police have maintained a visible presence outside the consulate. The July 27 shooting occurred despite a marked police cruiser stationed nearby.