UPDATE: All lanes have now been cleared and heavy delays are easing. 

HEAVY delays are building on a Hampshire motorway this morning after a crash. 

Two lanes are currently blocked on the southbound M3. 

This is due to a crash at junction 12 for Chandler's Ford. 

Motorists are being warned of heavy delays in the area of around 50 minutes. 

Traffic is currently backed up to junction 9 for Winnall.

More to follow. 

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