WASHINGTON (CBS NEWS/WJZ) — A law enforcement official told CBS News that the explosive devices found Wednesday at the headquarters of the Democratic National Committee and the Republican National Committee were viable, although it is unclear how much damage they could have caused.

The DNC and RNC headquarters are located just blocks from the U.S. Capitol building, which was under siege from a pro-Trump mob on Wednesday.

READ MORE: Maryland High School Evacuated After Student Sets Off Firework

The FBI is offering a $50,000 reward for information that will lead to the arrest and conviction of the person or people responsible for two pipe bombs found in D.C. Wednesday.

READ MORE: Maryland Weather: Muggy With Storms Likely Later On

Around 1 p.m. Wednesday, while President Donald Trump was still addressing his supporters at the Save America rally near the Ellipse, multiple law enforcement agencies were notified about a pipe bomb with wires at the Republican National Committee officer location at 310 First Street SE. Just 15 minutes later there were reports of a similar pipe bomb outside the Democratic National Committee office at 430 South Capitol Street SE.

MORE NEWS: 29-Year-Old Wounded In Northeast Baltimore Shooting, Police Say

If you have any information concerning this incident, you can contact the FBI’s toll-free tip line at 1-800-CALL-FBI (1-800-225-5324), or submit tips online at fbi.gov/USCapitol.

CBS Baltimore Staff