Trucks submerged in flood water in the town of Puget-sur-Argens, Monday, Dec. 2, 2019. The crew of a rescue helicopter were among five people killed in heavy weekend rains that pounded France's Mediterranean coast in a second week of deadly flooding in the region. (AP Photo/Daniel Cole)

PARIS (AP) — A helicopter crash killed three French rescuers on a mission to save people trapped by floods, and three others were also killed in heavy rains that pounded France’s Mediterranean coast in a second week of deadly flooding in the region.

Brown floodwaters continued to gush down streets Monday in towns around the picturesque Provence region, blocking vehicles and complicating cleanup efforts.

The helicopter that crashed had carried out 13 rescue missions Sunday and was being diverted to another storm-slammed area, near the inland town of Le Luc, when it lost radio contact, Interior Minister Christophe Castaner said. Emergency teams found the bodies of the three men aboard early Monday near the port city Marseille, and the wreckage was spotted nearby. An investigation is underway.

Three other people were killed in the storm, according to local authorities: a stable owner whose vehicle was swept away by floodwaters as he tried to check on his horses, a sheep farmer trying to gather his flock, and a woman in her thirties whose body was found Monday after she, too, was swept away.

A rock fall Monday onto houses also left two people injured, authorities said.

Six people were also killed in flooding around France’s Mediterranean coast a week ago. Expressing condolences for those killed in both storms, Prime Minister Edouard Philippe noted the “growing regularity and intensity” of extreme weather events.

Arriving at crucial U.N. climate talks in Madrid on Monday, Philippe said that “many see, and rightly so, the signs of climate change in this, and signs of the threats that are weighing on the populations of France and the world. Anyone who ignores these signs ... is making a profound mistake.”

A car submerged by flood water in the town of Roquebrune-sur-Argens, Monday Dec. 2, 2019. The crew members of a rescue helicopter were among five people killed in heavy weekend rains that pounded France’s Mediterranean coast in a second week of deadly flooding in the region. (AP Photo/Daniel Cole)
A man carries supplies in a wheelbarrow along a road destroyed by floods in the town of Roquebrune-sur-Argens, Monday Dec. 2, 2019. The crew members of a rescue helicopter were among five people killed in heavy weekend rains that pounded France’s Mediterranean coast in a second week of deadly flooding in the region. (AP Photo/Daniel Cole)
Rain clouds form over Marseille, France, Sunday, Dec. 1, 2019. The southern France region is under alert for heavy rain and floods. (AP Photo/Daniel Cole)
Rescue workers stand in flood water at an industrial park in the town of Frejus, France, Monday Dec. 2, 2019. The crew of a rescue helicopter were among five people killed in heavy weekend rains that pounded France’s Mediterranean coast in a second week of deadly flooding in the region. (AP Photo/Daniel Cole)
Trucks submerged in flood water in the town of Puget-sur-Argens, Monday, Dec. 2, 2019. The crew of a rescue helicopter were among five people killed in heavy weekend rains that pounded France's Mediterranean coast in a second week of deadly flooding in the region. (AP Photo/Daniel Cole)
A group of residents use a dinghy to inspect damage caused by flood water in the town of Frejus, France, Monday Dec. 2, 2019. The crew of a rescue helicopter were among five people killed in heavy weekend rains that pounded France’s Mediterranean coast in a second week of deadly flooding in the region. (AP Photo/Daniel Cole)
A car submerged in flood water in the town of Frejus, France, Monday Dec. 2, 2019. The crew of a rescue helicopter were among five people killed in heavy weekend rains that pounded France’s Mediterranean coast in a second week of deadly flooding in the region. (AP Photo/Daniel Cole)
People wade through flood water in the town of Frejus, France, Monday Dec. 2, 2019. The crew of a rescue helicopter were among five people killed in heavy weekend rains that pounded France’s Mediterranean coast in a second week of deadly flooding in the region. (AP Photo/Daniel Cole)
A man walks along the coast as clouds form over Marseille, France, Sunday, Dec. 1, 2019. The southern France region is under alert for heavy rain and floods. (AP Photo/Daniel Cole)