House explosion at 22 Astle Street. Emergency vehicle fill the long driveway to the house, as police (?) confer at the foot of the driveway on Astle
House explosion at 22 Astle Street. Emergency vehicle fill the long driveway to the house, as police (?) confer at the foot of the driveway on Astle Street. (SUN/Julia Malakie) (Julia Malakie)

TEWKSBURY -- A home explosion in Tewksbury has been linked to a buildup of methane gas related to a marijuana THC extraction process. Follow our coverage as it updates.