TORONTO (AP) - Police said Monday more arrests are likely in an alleged plot to bomb buildings in Canada, while intelligence officers sought ties between the 17 suspects and Islamic terror cells in the United States and five other nations.

A court said authorities had charged all 12 adults arrested over the weekend with participating in a terrorist group. Other charges included importing weapons and planning a bombing. The charges against five minors were not made public.

The Parliament of Canada, in Ottawa, is believed to be among targets the group discussed. Toronto Mayor David Miller said CN Tower, a downtown landmark, and the city