A reporter for Chard and Ilminster News has tweeted this photo purporting to show the closed service station at Southfield roundabout.
A large heavy goods vehicle can be seen in the background surrounded by police and ambulances.
The scene at Southfields Roundabout services. Police cordoned off a HGV. Appears to be around 20 people inside it. http://t.co/aUTBj5wVHG
More top news
Leader Paul Nuttall is confirmed as UKIP's candidate to contest Stoke Central by-election following Labour MP Tristram Hunt's departure.
Alexander Downer said Australia would seek better access before reaching a post-Brexit trade agreement with the UK.
Emergency crews have rescued 11 survivors from Hotel Rigopiano, which was buried when the avalanche struck Wednesday afternoon.