Hundreds of people took to Hong Kong's streets to show support for press freedom and to demand police step up efforts to catch the assailants who critically injured the former chief editor of a newspaper in the city.

Kevin Lau, former chief editor of Hong Kong's Ming Pao Daily News, was ambushed on Wednesday as he got out of his car near a restaurant in Sai Wan Ho when an assailant slashed him with a meat cleaver. The attack left Lau's internal organs exposed and damaged nerves in his leg, the South China Morning Post reported on Friday. Lau, 49, is now chief operating officer at a unit of Media Chinese International Ltd, which owns Ming Pao.

Lau, who had been in critical condition, is now stable and was transferred to a private hospital ward Saturday, Ming Pao News reported Sunday.