FREDERICTON, N.B. -- Officials in New Brunswick are monitoring three ice jams clogging the St. John River, including one at Perth-Andover, N.B., that's more than four kilometres in length.

Spokesman for the province's River Watch program Geoffrey Downey says officials are surveilling the river with a drone and have set up a command post in the area located in the western part of the province near the border with Maine.

He says they can only watch and hope that Mother Nature decides to break up the ice.

Downey says the river has slightly exceeded flood stage at Hartland, N.B., as a result of an ice jam there, but says there have been no reports of serious flooding.

He says the weather is so far co-operating but rain is expected at the end of the week.

Downey says people are advised to stay away from the river banks.

This report by The Canadian Press was first published March 30, 2021.