Police spokesman Vaughn Henderson has confirmed that the three men in their 20s Devon Hodge, Junior Cue Sabratie, and Glenville Rogers have been formally charged with armed robbery.

I have been reliably informed as well that warrants have been prepared for not only a fourth person but a fifth personso investigators could very well be in the process of charging a fourth person and also a fifth person, he added.

Henderson said the Police High Command, in particular, was grateful to the public for their overwhelming support during the last couple days, which helped them to track down the suspects.

It was on Sunday that a tour bus carrying 17 visitors (including a child), who arrived in the island on the Celebrity Mercury, was ambushed as it was heading to a popular tourist attraction, Brimstone Hill, in the north-west of the island.

According to police, the driver got out of the bus to move a tree branch that was in the road when someone threw a rock at the windshield. Armed, masked men reportedly then rushed from the bushes, boarded the bus and held the visitors at gunpoint, taking their money, jewelry, cell phones and other personal items.

The incident prompted two cruise ships to cancel its stops in St Kitts this week and dock in Antigua instead.