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Heart's Club Classics with Annaliese 7pm - 10pm
Heart's got hold of a private memo from London Ambulance Service questioning the standard of the replacement fire fighters being used during the fire strikes.
It claims they'll take longer to get to calls and won't be as experienced.
As a result it's warning paramedics not to put themselves in danger.
The next strike is on Monday - with another on Bonfire Night.