This can create an explosion hazard if the gas reaches sufficiently high concentrations in adjacent buildings.

The gas probably reached the Guthrie Street building along a sewer.

In the test, which lasted about two minutes, hot gases were allowed to leak and reach the primary O ring.

The wealthy socialite waited until the gas had reached the edge of the cornfield.

From their vantage point, which the gas hadn't reached, the crooks aimed to kill.

Two days later gas reached its highest point, $3.79 a gallon.

Moving at about 45 miles an hour, the gas reached villages 12 miles away.

From a cold start, the burner uses natural gas, propane or oil to reach the right temperature, then runs on coal alone.

On nearby counters were the remains of whatever food was being prepared when the gas had reached the galley.

They hoped to have enough time, after the water had entered, to close the watertight door before the gas could reach a dangerous level.