Leonard Nimoy: Fans pay tribute at Hollywood star

Fans, actors and President Obama have been paying tribute to US actor Leonard Nimoy, who has died at the age of 83.

Nimoy had a long career as both an actor and director, but was best known for his portrayal of the half-human, half-Vulcan Mr Spock in the cult sci-fi series Star Trek.

Alistair Leithead reports from the Hollywood Walk of Fame in Los Angeles, where fans have been giving their reaction.