Traffic was slow on the southbound carriageway following a crash involving a silver Vauxhall Astra and a lorry, shortly after 7am today (Thursday). The crash happened at the Black Cat Roundabout. Police and paramedics were called to the scene but no one was injured. The road was initially blocked but cleared by 8.30am. Queues stretched to the Eaton Ford junction and congestion was reported on the A421 eastbound to the Great Barford junction.