66568 (Freightliner) apparently caught fire whilst working through Gospel Oak Platform 2 (attributed on RTT to a problem with traction equipment, but whether that's accurate is not something I can determine). From the odd photo on Twitter, fire does not seem to have spread to the cab so hopefully the driver was OK.
1Z99 is attending. I believe the "GOBLIN" has been open to trains throughout but I should imagine passenger trains have not been in service whilst Gospel Oak was evacuated. Some Westbound services on the NLL are now running with major disruption. Eastbound services (to Stratford) remain suspended.
EDIT: Just seen the above - glad it was not actually a fire as reported.