A 19-year-old has been taken to hospital after being hit by an HGV on the motorway.
A major section of the M55 was closed just before 10am on Thursday, due to a serious crash.
The air ambulance attended but the teenager was taken to hospital via the roads.
A spokesperson for the ambulance service said: "We were called to an RTC involving a lorry and a pedestrian on the motorway at 9.30am.
"A 19-year-old male was taken to hospital with serious injuries by road.
"The air ambulance did attend though."
The motorway was closed in both directions between junctions one and three and police were asking commuters to find alternative routes.
A spokesperson for the police said: "We are currently at the scene of a serious collision on the M55.
"The motorway is closed in both directions between junction one and junction three while investigations are continuing.
"Please find an alternative route if possible."
We are currently at the scene of a serious collision on the M55. The motorway is closed in both directions between J1 and J3 whilst investigations are continuing. Please find an alternative route if possible.
— Lancs Road Police (@LancsRoadPolice) February 10, 2022
Traffic is queuing in both directions and there are severe delays on both carriageways.
The M55 is closed in both directions at Junction 3 (Kirkham) due to a serious road traffic collision. Please avoid the area if you can. We will update you when we can. pic.twitter.com/sIlcqwtaPF
— Lancashire Police (@LancsPolice) February 10, 2022
Further updates from the police just before 11.30am read: "We were called at 9.30am today to reports of a single vehicle collision on the eastbound carriageway of the M55 at junction three (Kirkham).
"A short time later there was then reports of a second collision on the westbound carriageway involving a van and a pedestrian.
"A man has been taken to Royal Preston Hospital by ambulance.
"His condition is not thought to be life-threatening.
"Nobody has been arrested.
"The M55 is closed in both directions at junction three."
Anyone with information is asked to call police on 101, quoting log 0346 of February 10.
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