All lanes have now been re-opened on the M62 westbound between junction 27 (Gildersome) and junction 26 (Chain Bar) after cows blocked the road.
Traffic has now cleared in both directions following an earlier traffic build-up.
Congestion on the westbound side was as far back as junction 30, A642. (Rothwell)
Surrounding areas have been affected with heavy traffic building up in Birstall between the Gildersome and Bradford Road junction.