Engineers have completed repairs to the damaged signalling systems room.

Network Rail said Thursday morning saw a reintroduction of full services on the WCML and also for local trains between Walsall and Stafford.

One person is thought to be responsible for the attacks to cables across the West Midlands over the past year.

Diversions and delays

Peter Leppard, Network Rail area general manager, said: "Last week's attack was a despicable act of vandalism, which has caused prolonged delays and inconvenience for the thousands of passengers who rely on rail services along this route.

"As well as costing the rail industry thousands of pounds, which would otherwise be invested in improving the network, this incident has also diverted our staff away from other important tasks throughout the West Midlands."

Thursday's fire knocked out signalling on a stretch of the WCML between Stafford and Hednesford.

Engineers made running repairs allowing a reduced service to run, with final repairs and testing of the new signalling equipment completed on Wednesday evening.

Virgin Trains cancelled more than 100 services after the fire, which hit services on the direct Trent Valley line from Stafford to Rugby, which carries services from London to the north west and Scotland.