The police released a CCTV image shows two suspects on a motorcycle, while Lau (inset) was in a "critical condition" in Pamela Youde Nethersole Eastern Hospital. Photos: SCMP Pictures

Kevin Lau is transferred to the operating theatre at Pamela Youde Nethersole Eastern Hospital in Chai Wan. Photo: SCMP Pictures

CY Leung speaks to the media at Pamela Youde Nethersole Eastern Hospital. Photo: Dickson Lee

Vivian Chan Pik-kwan, wife of former Ming Pao chief editor Kevin Lau Chun-to, arrives at the hospital. Photo: Dickson Lee