M5 traffic live: ‘Six cars’ involved in crash near Bristol causing long delays

Six cars are reported to have crashed on the M5 near Bristol this morning. A lane is closed heading south at Junction 15 for the Almondsbury Interchange and the M4.
Traffic[1] site Inrix reports that six cars a possibly involved with a lane currently closed in a stretch of the motorway where roadworks are taking place. Travel time is currently 15 minutes with tailbacks building heading towards Somerset.
Inrix reports: "Queuing traffic and one lane closed due to multi-vehicle accident on M5 Southbound at J15 M4 J20 (Almondsbury Interchange). In the roadworks area. Travel time is 15 minutes.
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"Camera shows six cars possibly involved, lane two (of two) is closed."
We will bring you updates in our live blog below