National Rail have confirmed that due to a signalling fault, no trains are running between Hereford and Shrewsbury this morning.
From National Rail:
A fault with the signalling system between Shrewsbury and Hereford means all lines are blocked.
Buses will replace trains between Shrewsbury and Hereford until approximately 10:00.
Alternative travel advice
You may use you ticket on West Midlands Railway services between Shrewsbury / Hereford and Birmingham New Street, and on CrossCountry between Cardiff / Manchester and Birmingham New Street.