At least one officer was in serious condition, while the driver was in critical condition, the officials said.
Sputnik comes live from outside the US Capitol in Washington DC where tighter security measures are being introduced after Friday's attack that left two people dead, including the assailant. Six lives, including that of Capitol Police officer Brian Sicknick, were lost in the incident.
The law enforcement officials told the AP that the suspect was shot and was being taken to the hospital in critical condition.
A Police Officer has died in the United States after a man rammed a auto into 2 officers at a barricade outside the U.S. capitol.
The officials could not discuss the matter publicly and spoke to the AP on condition of anonymity.
The attack occurred about 91 meters from the entrance of the building on the Senate side of the Capitol before 1:30 p.m. eastern time.
Barbed wire fencing has been set up around the Capitol complex since the January 6 riot. The Capitol Police last week began taking down some of the security fencing around the outer perimeter of the complex, easing up on checkpoints and allowing cars to drive closer to the halls of Congress.
Law enforcement officials identified the suspect as 25-year-old Noah Green.
House Speaker Nancy Pelosi ordered the flags at the U.S. Capitol to be flown at half-staff due to the death of the Capitol Police officer, Pelosi's deputy chief of staff tweeted.