A shooting incident has been reported at the Texas Army base that was the site of a gun rampage in 2009 that left 13 soldiers dead and another 32 wounded.

A shelter in place order was issued for the Fort Hood military base, US media reported.

The shooting is said to have occurred at the Carl R Darnall Army Medical Center, located on the base.

Emergency crews are reportedly at the scene.

FBI press officer Michelle Lee told the BBC the agency and local police had responded to the report of a shooting, but did not have any information on how many people may have been shot.

"We are treating this as an active situation," she said.

However, local media are reporting at least one fatality, eight injuries and that one person has been taken into custody.

The report has not been independently verified.

US President Barack Obama has reportedly been briefed on the matter, a White House spokesman said.

Maj Nidal Hasan was sentenced to death last September over the 2009 shooting rampage at the same facility.

He claimed he opened fire at the army base to protect Taliban insurgents from US troops who were about to deploy to Afghanistan.