( CNN ) -- A nuclear weapons assembly and disassembly plant in Texas was on lockdown Friday morning because of a `` potential security situation , '' according to a news release . The Pantex Plant in Carson County , Texas , `` has activated its Emergency Response Organization to respond to a potential security situation , '' the release said . The event , which was not described , occurred around 8 a.m. the release said . `` The plant is in a lockdown status and the situation is being evaluated in order to facilitate security actions . Pantex employees are sheltered in place , '' it said . Damien Lavera , a spokesman for the National Nuclear Security Administration , said Pantex is responding to a concern reported by an employee . Lavera said the plant management is in control of the situation , which he said should be resolved quickly . Further details were not immediately available . The Pantex plant is the nation 's only nuclear weapons assembly and disassembly facility , the release said . The facility is managed and operated by B & W Pantex for the U.S. Department of Energy/National Nuclear Security Administration , according to the plant 's Web site . It is about 17 miles northeast of Amarillo , Texas .
`` Potential security situation '' led to lockdown , plant says in release . Pantex Plant is the nation 's only nuclear weapons assembly , disassembly facility . It was built by a consortium of U.S. and Canadian companies including General Electric ( GE - news - people ) and Honeywell International ( HON - news - people ).