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.
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A damp and cold night ahead. Valentine's Day will start cloudy but become brighter in the afternoon. Risk of showers along the Kent coast.
Cold and damp tonight with outbreaks of rain. A cold and dull start to Valentine's Day but becoming drier and brighter by the afternoon.
Rain turning more patchy this afternoon but more persistent along the coast. Feeling cold in the brisk north-easterly wind.