Police and fire crews attended a mains gas leak in the Marsh Barton area of Exeter on Thursday evening.
Reports of the incident emerged at around six o' clock after the closure of Bad Homburg Way in Matford, with police officers evacuating offices and closing roads in the 250 metre exclusion zone in the following 40 minutes.
Gas engineers were called, repairing the damage with four fire crews standing by as a precaution.
Roads in the area have now reopened.
Homes to be built on former Exeter driving range
Extra staff to improve adult response times
Guns seized in drugs crackdown
South West could lead next generation aerospace
Plans for 65 Exeter homes rejected
New plan for Paignton’s Crossways centre likely
