Updated

A Russian man seen taking photographs of Secretary of State John Kerry's Boston home has been arrested on state child pornography charges.

Authorities say 30-year-old Vladimir Romanov was arrested Wednesday. He was indicted last week on six counts of child pornography possession.

Federal agents began investigating Romanov after he was arrested in July outside Kerry's home.

Police said Romanov parked in a no-parking zone and began taking photographs. Police say they found a pellet gun and an open container of alcohol in his vehicle. Romanov was charged with public drinking.

State prosecutors say federal agents later searched computers in Romanov's Boston home and found sexually explicit images of children.

Romanov was expected to be arraigned Wednesday. A message left for an attorney who previously represented Romanov wasn't immediately returned.