![A nearly full 1,000-gallon gas tank at Suburban Propane on Derwood Circle in Rockville began leaking after a valve was sheared off. (WTOP/Kate Ryan)](https://wtop.com/wp-content/uploads/2018/05/051718_gas_leak_3.jpg)
![A nearly full 1,000-gallon gas tank at Suburban Propane on Derwood Circle in Rockville began leaking after a valve was sheared off. (WTOP/Kate Ryan)](https://wtop.com/wp-content/uploads/2018/05/051718_gas_leak_2.jpg)
![A nearly full 1,000-gallon gas tank at Suburban Propane on Derwood Circle in Rockville began leaking after a valve was sheared off. (Courtesy Pete Piringer/Montgomery County Fire and Rescue Service)](https://wtop.com/wp-content/uploads/2018/05/051718_gas_leak.jpg)
![A nearly full 1,000-gallon gas tank at Suburban Propane on Derwood Circle in Rockville began leaking after a valve was sheared off. (WTOP/Kate Ryan)](https://wtop.com/wp-content/uploads/2018/05/051718_gas_leak_3-260x174.jpg)
![A nearly full 1,000-gallon gas tank at Suburban Propane on Derwood Circle in Rockville began leaking after a valve was sheared off. (WTOP/Kate Ryan)](https://wtop.com/wp-content/uploads/2018/05/051718_gas_leak_2-260x174.jpg)
![A nearly full 1,000-gallon gas tank at Suburban Propane on Derwood Circle in Rockville began leaking after a valve was sheared off. (Courtesy Pete Piringer/Montgomery County Fire and Rescue Service)](https://wtop.com/wp-content/uploads/2018/05/051718_gas_leak-260x174.jpg)
WASHINGTON — Red Line Metro service resumed Thursday afternoon between the Twinbrook and Shady Grove stations in Rockville, Maryland, after an earlier nearby gas leak.
Service on the line was shut down for about three hours Thursday because of the gas leak. CSX train traffic, which was also halted, also resumed, said Montgomery County Fire and Rescue Service spokesman Pete Piringer said via Twitter.
A nearly full 1,000-gallon gas tank at Suburban Propane on Derwood Circle in Rockville began leaking after a valve was sheared off, Piringer said. Crews are on the scene controlling the leak.
Service on the Red Line near there shut down shortly before 10 a.m.
The gas odor spread, causing Montgomery College to evacuate its campus as a precaution. The evacuation was lifted shortly before noon.
Stay with WTOP as this story develops.