Last updated at 13:56

What is homophobia?

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There's been an attack on a gay nightclub in the city of Orlando in Florida, USA.

Forty-nine people died in the shooting.

Police shot the man responsible before he could any more harm.

We don't yet know why the attack happened, but it could have been because of a hatred towards gay people - or homophobia.

Watch Newsround's guide to what homophobia is.