A 28-year-old Hamilton man has been charged with mischief after allegedly telling a passenger on a GO Transit bus that he was carrying a bomb, forcing the closure of Highway 407 for several hours Saturday.

It happened around 9 a.m. ET on a bus travelling between Derry Road and Brittania Road in Milton, Ont.

A passenger first approached the driver after the man allegedly began swearing and telling others that he had an explosive, said GO Transit spokeswoman Anne Marie Aikins.

Ontario Provincial Police say they put the bus on lockdown sometime between 10 a.m. and 11 a.m. after the driver called 911.

Tactical teams, canine and explosive disposal units, and members of the OPP, Peel police and Halton police were all involved.

Officers evacuated the more than a dozen passengers while they began negotiating with the suspect using a cellphone.

Police allowed the approximately 17 passengers to clear the bus before they boarded and arrested the suspect, Aikins said. No one was injured, police say.

Suspect in custody

"I don't know if I would call it a hostage situation," Aikins said. "I don't have the full details on whether he was telling people they couldn't leave."

The suspect is now in police custody. It's unclear whether he posed a serious threat.

Highway 407 was closed between Derry and Britannia roads as police swept the bus for any signs of danger, said Sgt. Kerry Schmidt.

All lanes had reopened by 5 p.m. ET.