Construction crews damaged a natural gas line in San Bruno Tuesday afternoon, causing the evacuation of about a half-dozen homes, the city's fire chief said.
The rupture occurred just before 2 p.m., when construction workers digging on Chestnut Avenue near Jenevein Avenue struck a 2-inch gas transmission line, PG&E spokesman Andrew Souvall said.
San Bruno Fire Chief Dennis Haag said houses in the immediate area were evacuated for about 45 minutes as a precaution.
Most residents were not at home, Haag said.
PG&E said crews capped the line before 4 p.m.
Seven customers are without gas service as repairs were under way, Souvall said.