A483 crash reportedly involving multiple vehicles at Rossett
The incident has happened on the northbound carriageway heading towards Chester.
A North Wales Police spokesperson said: "Due to an ongoing incident on the A483 Northbound near Rossett J7, please avoid the area.
"Emergency services are in attendance."
Traffic monitoring service Inrix reports: "A483 northbound partially blocked, slow traffic due to accident near J7 B5102 (Rossett)."
A witness took to social media to state: "Accident on the A483 Northbound just after Rossett (Junction 7 towards Chester).
"Currently only the left lane closed by police however there are several vehicles and a lorry involved, as well as debris on the road so that may change."
Further updates will follow.