London: London’s Underground network ground to a halt on Monday as thousands of workers began a four-day strike, causing widespread travel chaos across the capital. The industrial action, led by the RMT union, is set to continue until Thursday, with services expected to resume mid-morning on Friday.

The dispute centers on demands for a reduction in the working week from 35 to 32 hours, alongside concerns about fatigue, shift patterns, and health issues. Transport for London (TfL) has offered a 3.4 percent pay increase but said it cannot afford to cut working hours. Union leaders argue that a shorter week is essential for staff wellbeing and long-term safety.

The strike has shut down nearly all London Underground lines, with only limited services operating on the outer stretches of the Central and Metropolitan lines. Further disruption is expected on Tuesday and Thursday when the Docklands Light Railway will also be hit by strike action. Other services including the Elizabeth Line, London Overground, National Rail, trams, and buses remain in operation but have been severely overcrowded as passengers seek alternatives.

Commuters faced lengthy delays, long queues, and soaring travel costs. TfL’s website and journey planner app both crashed due to surging demand, adding to the frustration. Ride-hailing fares surged, with some five-mile trips reported to cost up to £50. Many Londoners resorted to cycling or walking to reach workplaces and schools.

At least 10,000 union members are participating in the strike, which is also disrupting entertainment and tourism. Concerts by Coldplay and Post Malone at Wembley Stadium have been rescheduled, while businesses fear a hit to footfall and productivity during the week.

Despite the disruption, no formal negotiations have yet been scheduled. Both sides have expressed willingness to resume talks, but political pressure is mounting on Mayor Sadiq Khan to help broker a resolution.

Travel authorities are advising commuters to allow extra time, plan alternative routes, and consider travel insurance, particularly for those heading to airports and major rail hubs during the strike period.