With the opening of the MTR Island line in 1985, and CMB's reputation of outdated ethos and poor services over the years, ridership on CMB declined. On 29/30 November 1989, CMB employees started a massive strike, after broken negotiations on their pension funds. During the strike, all CMB services on the island were halted, to the extent that the government was forced to use police vehicles to facilitate commuting to and from the Southern District. After the incident, the relationship between CMB and the government worsened, leading to the government to adopt more directive policies in respect of CMB.