My friend Joshua Wong is among those jailed in Hong Kong – the UK must stand up for these political prisoners | Nathan Law

I too suffered this repression. The harsh sentences handed down to democracy activists cannot go unchallenged

Joshua Wong, one of Hong Kong's best-known pro-democracy activists, was sentenced to four years and eight months in prison on Tuesday. He received a one-third sentencing cut to that period by pleading guilty. Even so, coupled with other charges he faced for his peaceful participation in the 2019 democratic protests, he will be in prison until at least 2027.

I spent my formative years with Wong. We were both student leaders in the 2014 Umbrella Movement, and co-founded the now-dissolved youth-led political party Demosist in 2016. He gave everything he had to support me in my bid to become the youngest legislator in Hong Kong the same year. In 2020, I departed the city; he remains. The pain of survivor's guilt hits me every night.