The package was found in Northfields station, which has caused the service between Acton Town and Heathrow to be closed.
Transport for London has claimed this closure is down to a security alert at the station.
They said: “No service between Acton Town and Heathrow all terminals due to a security alert at Northfields.
“Good Service on rest of the line. Covent Garden & Heathrow T4.”
Social media account, London & UK crime said: “Evacuation of Northfields station Reports of suspect package.”
There are still severe delays on the Piccadily Line due to the incident.
The security services have not yet released a statement confirming whether and if there was a suspicious package discovered.
London news: Station evacuated
TfL did add, however, the severe delays were caused by a security alert.
They said: “Severe delays between Acton Town and Heathrow all terminals due to an earlier security alert at Northfields.”
The London Underground often reports suspicious packages left on platforms or stations.
Operators on the Underground and on the National Rail network are also quick to close stations if there is a fatality on the tracks.
Northfields: No further comment has been released by TfL
Amid the peak of the pandemic, Tube numbers dropped severely as the public was advised to work from home.
Due to drop in numbers, TfL was forced to reduce the number of stations in operation across the network.
Many stations have now reopened due to the drop in coronavirs cases.
However, the majority are running on a limited service.
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On the UK’s rail network, three people died in Aberdeenshire following a serious incident.
The three people, including the driver and a conductor died after the train derailed.
London news: Three people died
It is thought the train derailed due to a landslide after heavy rain and thunderstorms in Scotland.
Six other people were taken to hospital.