A top US Republican Steve Scalise and aides have been shot during baseball practice in Virginia on Wednesday, BBC reported.

Officers who were part of Scalise’s security detail also returned fire and wounded the shooter, who was taken into custody.

It has been learnt that Scalise, the House majority whip, was in stable condition at George Washington University Hospital.

Following the incident, President Donald Trump said he was “deeply saddened by this tragedy” and was monitoring developments.

Police in the upmarket Washington DC suburb of Alexandria said they are investigating into a "multiple shooting".

The incident occurred when the lawmakers were practising for the annual congressional ballgame between Democrats and Republicans, which was scheduled to be played on Thursday at Nationals Park, home of Major League Baseball franchise the Washington Nationals.