U.S. Sen. Tim Kaine's youngest son was among eight people charged for allegedly disrupting a March rally in support of President Donald Trump.

Linwood "Woody" Kaine, of Minneapolis, was charged Friday with one gross misdemeanour count of obstructing the legal process and misdemeanour counts of fleeing on foot and concealing his identity in public.

Seven other people were also charged, including two with felonies.

A criminal complaint says Kaine and others changed into black clothing during the rally and entered the Capitol. One group member threw a smoke bomb inside. The complaint says the 24-year-old Kaine was among those who ran away, and he initially resisted arrest.

Kaine doesn't have a listed number and it's not immediately clear if he has an attorney.

Tim Kaine was Hillary Clinton's running mate.