The accident occurred at around 3 am near Virul village, disrupting traffic and prompting authorities to divert vehicles on the affected stretch of the expressway

Following the fire inside the Mumbai Coastal Road tunnel, attention has turned to the safety of the city's expanding tunnel network. Here's a look at the emergency systems in Metro Line 3, the Coastal Road tunnel, the Samruddhi Mahamarg Igatpuri tunnel and the Mumbai-Pune Expressway Missing Link tunnels.