ONE lane is blocked along the A34 near Headbourne Worthy, causing heavy traffic.

Police were called to a broken-down vehicle on the A34 Southbound around 12.30pm.

Delays are building this afternoon (February 29) along the A34 southbound, with one lane shut between Three Maids Hill roundabout and the A33.

#A34 Southbound - one lane BLOCKED between A272/Three Maids Hill Rbt #WorthyDown and A33 due to an RTI, delays building. pic.twitter.com/gI0g502bDg