By CTV News Ottawa, May 2, 2017
Buildings in a four-block radius in downtown Ottawa near Queen Street and O' Connor Street have been evacuated following a massive gas leak.
The leak was caused when subcontractors for Rideau Transit Group, the consortium in charge of the light rail transit project, struck a four-inch stub on a gas main while doing streetscraping work on Queen Street, according to RTG.
The subcontractor immediately called 911.
The LRT tunnel beneath was evacuated, and no injuries were reported. As of 3:30 p.m. on Tuesday, the gas was still leaking.
http://ottawa.ctvnews.ca/massive-gas-leak-in-downtown-ottawa-caused-by-lrt-construction-1.3394674