Residents of Chateauguay, Quebec, hurled Molotov cocktails as they rioted against police for the second night in a row Monday, frustrated over a monthlong Mohawk blockade of the Mercier Bridge that links the southshore community to Montreal.

Indians armed with automatic weapons have held the bridge for a month, forcing detours to Montreal, a normal 20-minute drive that now takes an hour.

Mohawks from Kahnawake took the bridge last month to support Mohawks at Oka, west of Montreal. Oka Mohawks still barricaded roads Monday to prevent the community from expanding a municipal golf course onto land believed to be an Indian burial ground.

Police reported 25 arrests Monday, but apparently had an easier time quelling the Chateauguay violence than they did Sunday when a demonstration peaked at 7,000 and left 38 injured, including 16 police officers. Irate townspeople who protested Monday numbered only several hundred.

Violence erupted Sunday a few hours after the federal and provincial governments signed an agreement with the Mohawks to begin negotiations. The talks, expected to start Wednesday, will be aimed at bringing down Indian barricades that continued to disrupt life in Chateauguay and in the town of Oka.

The crisis started July 11 when heavily armed provincial police tried to enforce a court injunction ordering the Mohawks to dismantle a barricade at Oka. A police corporal was killed in the gun battle.

“Today’s signing is the beginning to the resolution of this conflict,” Joe Deom, a Mohawk negotiator, said Sunday after all sides had signed the agreement to talk.

Use of international observers was one of three points agreed to by Mohawks, Quebec and Ottawa. The other conditions were the free flow of food and supplies behind Indian barricades and unimpeded access for Mohawk advisers.

The Canadian Armed Forces were put on standby last week, at the request of Premier Robert Bourassa. As of Tuesday, the army had not been mobilized.