Authorities are negotiating with a man who has reportedly taken people hostage at a synagogue in Colleyville, Texas, during services on Saturday that were being streamed live, according to the Fort Worth Star-Telegram.
The Colleyville Police Department posted on Twitter earlier on Saturday that it was conducting SWAT operations on the block where Congregation Beth Israel is located and said the immediate area was being evacuated.
No injuries have been reported inside the building, according to a report in the Dallas Morning News.
"Colleyville Police Sergeant Dara Nelson said negotiators have made contact with somebody inside the synagogue who they believe is a suspect," the Dallas Morning News said.
The man could be heard having a one-sided conversation in what appeared to be a phone call during a live stream of the Reform Jewish synagogue's Shabbat service.Â
The live stream cut off about 3pm.
It was not clear how many people were in the building in Colleyville, a community of about 26,000 people about 20 kilometres northeast of Fort Worth.