US Capitol lockdown lifted, gunman taken into custody
THE US Capitol building lockdown has now been lifted after police in Washington scrambled to deal with reports that shots had been fired at a visitor centre.
The gunman was injured and taken into custody and a police officer was wounded, though not seriously, police said.
The event unfolded while Congress was on recess and politicians back in their home districts, though the city was full of tourists enjoying the famous cherry blossoms.
President Barack Obama had earlier in the day overseen his final Easter Egg Roll as president. Beyonce and Jay-Z were among his guests. A total of 35,000 people attended the event.
Reports said Capitol Hill workers had been told to stay in place as a lockdown was ordered. The White House was also placed on lockdown, though CNN said this was the result of a separate incident in which someone was trying to enter the grounds. That person was also detained.
A number of emergency response teams were dispatched to the location in the centre of the nation's capital city where the shots were said to have been fired.
Reuters later reported that a gunman had been captured. The news agency said that injured police officer had not badly hurt. Its report was based on sources in the Congress's Sergeant-at-Arms' office.The building has been placed under a cordon because of a "potential security threat," the US Capitol Police said.
No one is being allowed to enter or exit any of the buildings. Anyone outside has been advised to seek cover immediately.