A rather whiffy mystery surrounds a pervading pong hanging over Sutton Coldfield, Great Barr and Walsall.

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What did you think of the pong which seemed to be in the air over Sutton Coldfield, Great Barr and Walsall?
The strange stench started nostrils twitching last afternoon on Friday and sparked a volley of tweets ranging from the curious to - some might say - the downright offensive.

No official explanation has been given for the smell, although a similar foul "farmyard" waft detected in 2008 was blamed on strong easterly winds wafting it from across the Channel.

Back then, it was dubbed the "Euro-whiff" by the Met Office - and could it now be back?

Whatever the cause, Twitter has been alive with people kicking up a stink across Walsall, Sutton and Great Barr.

Scores of tweeters focussed on the whiff's sewerage stench, while one wag suggested: "The strange smell in Sutton is mahogany and cigars."

Anyone with concerns over smells should contact the environmental health department of their local council.