Forty-five prominent activists in Hong Kong have been sentenced to up to 10 years in jail, sparking criticism from foreign governments and rights groups.

Ventus Lau is one of 45 activists and politicians who was sentenced in the city’s biggest national security trial. His girlfriend, Emilia Wong, a gender rights activist, talks about the impact his case has had on their relationship.

The U.S. has criticized the trial and said the activists should be released as they had been "peacefully participating in political activities."