Hong Kong police are investigating after small firebombs were thrown at the home and business of a pro-democracy media magnate in an apparent intimidation attempt.

Surveillance video showed a car backing up to the gates of Jimmy Lai's home early Monday, and then an attacker getting out and throwing what looks to be a Molotov cocktail.

At about the same time, another incendiary was thrown from a car at the entrance to his media company.

No one was injured.

Next Media spokesman Mark Simon said it was a "continuation of the attacks against Mr. Lai and Next Media for its editorial position, which is at odds with the anti-democracy forces."

Lai staunchly supports Hong Kong's pro-democracy movement, which occupied streets last year to press their demands.