The family of courier Chan Ming-fuk, who was killed by a runaway bus in Mong Kok on Tuesday, performed rituals at the scene yesterday to pacify his spirit. Chan, 31, was one of four people knocked down by a KMB double-decker, which had its roof ripped off when it mounted a pavement and ploughed into the concrete canopy in Waterloo Road. Investigations into the cause of the accident are continuing and the driver remained suspended from duty. 'We are so sad right now; it is not the time to talk about whether KMB is responsible for the accident or the compensation. We will think about it when we can calm down,' a tearful family member said. Some shops near the site stayed closed and people placed flowers at the site. One of those injured in the accident was in a serious condition in Queen Elizabeth Hospital last night, while three others were stable in Kwong Wah Hospital. KMB said it had submitted a report to the Transport Department, but declined to reveal details.