Location : The M4 eastbound between junctions J22 and J21 . Reason : Police incident. Status : Currently Active. Time To Clear : The event is expected to clear between 05:30 and 05:45 on 23 July 2021. Return To Normal : Normal traffic conditions are expected between 05:30 and 05:45 on 23 July 2021. Lanes Closed : There are lane closures.