MoD-owned munitions - thought to be anti-tank mines - have been stolen from a freight train travelling from Cumbria to Oxfordshire.
Ten packages, each containing four separate plastic cases, were reported missing on Thursday morning when the train arrived at Didcot.
Seven packages have now been found near a railway line in Warrington, Cheshire - but three are still missing.
More top news
James Wright has the latest weather forecast for the west of the ITV Meridian region
James Wright has the latest weather forecast for the east of the ITV Meridian region
Ukip leader fails to see the humour in a phone app created by teenagers which pokes fun at him and his party's views on immigrants.