The assembly vice president, Roland Lescure, suspended the debate so fire officers could check out the problem. When he restarted the session about 15 minutes later, Lescure told lawmakers that absorbent mats were used to patch up the leak.
The French civil defense agency said one person was critically injured in the storm, which broadly swept France after a heat wave. The agency said power was also cut to 110,000 homes.
A falling tree killed a 12-year-old child in southwest France and a man died when his quad-bike hit a toppled tree in the northwest, French media reported.