Highways England said the road will not be open any time soon.
55-year-old Sean Williams was last seen at the Royal United Hospital in Bath.
Police have issued an urgent appeal to find missing 15-year-old Lacey Shutt, who has not been seen for nearly a week.
Two people were arrested on suspicion of being concerned in the supply of controlled drugs following the raid.
The Audi was set alight and the blaze quickly spread to and damaged a nearby bungalow.
Karol Marmolejo has issued an emotional plea for her son Angelo’s safe return.
Police believe Rafael Jurado-Cabello may have taken his eight-year-old son, Angelo, abroad.
35-year-old James Toogood is facing a charge of arson with intent to endanger life.
34-year-old Jonathan Roper from Glastonbury died of stab wounds on Saturday 23 March.
104-year-old Anne Brokenbrow made headlines after saying she'd 'never been on the wrong side of law' and wanted to see what it was like.