London Travel Disruptions Continue with Severe Delays on the Mildmay, Lioness, and Bakerloo Lines: New Update

Published on June 25, 2025

Travelers across London are facing significant disruptions this morning as severe delays continue to impact several key Underground and rail services in the capital. The Mildmay line, Bakerloo line, and Lioness line are all currently affected due to various issues, including overhead power line faults and fire alerts. Commuters are advised to expect delays as the city navigates through a challenging start to the rush hour.

Mildmay Line: Severe Delays Due to Faulty Power Lines at Gospel Oak

The Mildmay line, part of the London Underground, is currently experiencing severe delays due to an issue with the overhead power lines at Gospel Oak. This disruption has caused significant problems on the line, affecting services to and from various stations. Transport for London (TfL) has confirmed that repairs are ongoing, but commuters should expect delays and overcrowding in the affected areas.

This incident is a major cause of disruption, especially during rush hour when the number of travelers typically peaks. For those traveling on the Mildmay line, TfL has advised using alternative routes or stations where possible, as service frequencies are significantly reduced.

Bakerloo Line: Severe Delays Between Queens Park and Harrow & Wealdstone

The Bakerloo line is also experiencing severe delays, particularly between Queens Park and Harrow & Wealdstone. TfL reported that a fire alert at Kensal Green has caused service interruptions, with trains either delayed or suspended in some sections of the line.

These delays have been compounded by the high volume of passengers traveling during rush hour, making the situation even more challenging for commuters. The fire alert at Kensal Green has led to a temporary suspension of services in certain parts of the line, and passengers are being advised to check for updates before starting their journey.

Lioness Line: Delays Due to Fire Alert at Kensal Green

Similarly, the Lioness line is experiencing severe delays due to a fire alert at Kensal Green, which has led to service suspensions between Euston and Willesden Junction. This disruption is part of a series of incidents affecting the broader transportation network in London, and TfL is working with Network Rail to resolve the situation.

This interruption is expected to last for several hours, and passengers traveling on the Lioness line are being urged to use alternative routes or stations. TfL has also suggested that travelers should be prepared for longer journey times as services gradually return to normal.

Northern Line: Delays and Resumption of Service

In addition to the Mildmay, Bakerloo, and Lioness lines, the Northern line has also been facing delays. Severe delays were reported between Kennington and Camden via Bank northbound, following a faulty train at Borough. Fortunately, the situation has improved, and TfL has announced that the Northern line has resumed good service after brief delays.

For those traveling on the Northern line, service has now returned to its normal schedule, but there may still be minor disruptions as the network continues to recover from earlier delays.

Other Travel Disruptions in London

In addition to the Underground services, other travel routes in London are also experiencing significant disruption. There are serious delays on the A12, as various restrictions have been put in place to facilitate the refurbishment of Gallows Corner Flyover. Commuters using the A12 should expect delays and plan for extra travel time during peak hours.

Moreover, signaling system issues between Stevenage and Alexandra Palace have caused delays, with some trains running at reduced speeds or facing cancellations. These disruptions are expected to last until 09:30 am, and passengers are advised to monitor the latest travel updates for further information.

Live Travel Updates: Stay Informed

As rush hour intensifies, TfL continues to monitor the situation closely and is providing live updates on the status of various Underground and rail services. Passengers can check the latest information on the TfL website or through their mobile apps to get real-time notifications and alternative route suggestions.

In the meantime, commuters are encouraged to plan ahead and consider alternative travel options, including buses or different Underground lines, to minimize disruption to their journeys. While TfL works to resolve the ongoing issues, flexibility and patience will be crucial for navigating the busy London transport network today.

Looking Ahead: Improving Service and Preventing Future Disruptions

As London continues to face travel disruptions, TfL is focused on improving the reliability of its services and reducing delays across the network. While the current situation is frustrating for many commuters, TfL is actively addressing these issues to ensure that the transportation system runs smoothly moving forward.

The ongoing improvements to the Underground system, including better train maintenance and upgraded infrastructure, are part of a larger effort to increase the overall efficiency of London’s transport network. These enhancements will help reduce the impact of similar disruptions in the future and ensure that passengers have a more reliable and comfortable travel experience.

Conclusion: Navigate London’s Travel Challenges

The London travel disruptions today have caused significant delays on several key lines, including the Mildmay, Bakerloo, and Lioness lines. TfL is working diligently to resolve the issues caused by power line faults and fire alerts, but commuters should expect delays throughout the morning rush hour.

For the latest updates, passengers are encouraged to check the TfL website for real-time information and alternative routes. By staying informed and planning ahead, travelers can better navigate the challenges of the day and reduce the impact of delays on their commute.

Source: Transport for London (TfL)