West Midlands Police say the motive for the attack is unclear. The man has been identified and his family are being informed.
Cockshut Hill and the surrounding area is likely to remain closed until tomorrow.
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Any fog will clear as rain arrives through the morning.
Early mist and fog will gradually lift and clear through the morning
The Health Secretary has said he does not want Telford to lose its A&E facilities and has pledged £4m for a new ward.