An investigation is under way into a major fire close to Wembley Stadium as rail and Tube chaos sparked by the blaze continues for a second day.

Around 125 firefighters were scrambled to a mixed waste facility on an industrial estate in Neasden, nort London, just after 11.30am on Friday as the fire broke out.

Huge plumes of smoke could be seen in the sky in videos posted on social media, with firefighters still battling the blaze into the evening.

The fire, close to rail lines, meant the entire of the Metropolitan Line was suspended while the Jubilee Line was part suspended, with severe delays on the rest of the line.

On Saturday, major disruption on Tube and train services remained. The Jubilee line will be part suspended between Wembley Park and Willesden Green until at least the early afternoon with severe delays expected on the rest of the line.

The Metropolitan line will also remain part suspended until Saturday afternoon between Harrow-on-the-Hill and Aldgate with severe delays on the rest of the line.

Major disruption to London Marylebone trains will continue until at least 1pm on Saturday. All lines towards Aylesbury via Amersham are disrupted.

As the blaze broke out nearby residents were told to residents to close doors and windows and remain inside where possible as the thick black smoke filled the air.

A nearby Amazon warehouse, which is not related to the industrial unit involved, was also evacuated.

The fire was under control by 5.10pm but firefighters remained at the scene.

The cause of the fire is not yet known and an investigation has been launched.

Assistant Commissioner Andy Pennick said on Friday: “This is a protracted incident that will see crews on scene for the remainder of the day as the work to fully extinguish the fire.”

He added:“The Brigade was called at 1136 to reports of a fire on Hannah Close, Neasden. Upon arrival, firefighters were met by a well-developed fire involving a waste transfer facility. Recognising the scale of the fire, the initial officer in attendance immediately requested twenty fire engines be mobilised to the scene.

"An industrial unit, approximately 100m by 150m is currently alight. We have around 125 firefighters currently working to bring the fire under control. The fire has produced a significant amount of smoke, with local residents being advised to keep doors and windows closed as we respond. Services on nearby rail lines have also been suspended as a precaution whilst we respond.

"Four of the Brigade's 32m ladders have been mobilised to the scene as part of our response, alongside the Brigade's Drone Team. A Hose Laying Unit and High Volume Pump have also been deployed, increasing the amount of water available to firefighters as they work to bring the fire under control.”

The London Fire Brigade released images of the scorched warehouse as the smoke reduced.

Images showed an aerial view of the unit, which had been burnt by the blaze. The roof looked to be particularly damaged as smoke and steam rose from the building.

Passengers described being “stranded” as the blaze caused major disruption to transport. The LFB also warned traffic in the surrounding area would be heavily impacted.

Mayor of London Sir Sadiq Khan thanked the fire crews tackling the blaze.

He said in a post on X: “My thanks go to our brave firefighters who are tackling the blaze to protect lives and businesses.”

A spokesperson for London Ambulance Service said earlier an incident response officer was sent to the scene and currently no patients were being treated.