A vehicle fire in the undersea tunnel of the Hong Kong–Zhuhai–Macau Bridge caused major traffic disruption on Tuesday afternoon, prompting a partial closure of the key link between the three cities.The Transport Department said at 1.55pm that the incident occurred in the tunnel bound for Zhuhai and Macau, with the middle and slow lanes closed.Footage circulating online shows the tunnel filled with thick smoke.“Only the fast lane is available to motorists,” the department said. “Traffic is...