A 34-year-old man was rushed to hospital by ambulance following a three-car crash in Edgware this morning.
The emergency services were called to the southbound carriageway of Stone Grove at 11.50am following the crash at the Canons Corner junction with Spur Road.
Three cars were involved but paramedics were only required to treat one patient.
The road remains closed in both directions and bus route 142 is on diversion.
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