House members are being given gas masks that were under the seats, according to a pool reporter on the House floor.
"Rules Committee Chair McGovern is telling members there is tear gas in the rotunda and Grabbing mask under seats and be prepared to put on. Everyone is freaking out. Members are all holding the gas masks," the pool reporter said.
Everyone in the House chamber is being told to relocate to cloakroom.
There are about 100 people inside the chamber, that reporter said.