11.   In an announcement of probe results on Monday, investigators put the blame on a leaking gas main near the subway construction site, which the explosion ripped through.

12.   The prosecutors concluded that construction workers had accidentally drilled into a gas main, sending gas spewing through a ruptured sewage duct into the subway construction site in Taegu.

13.   Prosecutors have so far failed to establish whether there had been any other gas leaks at the subway construction site that might have contributed to the blast.

14.   Seoul businessmen visited subway construction sites Monday.

15.   Several workers at the subway site, which was under construction, remained unaccounted for.

16.   Six Portuguese workers trapped Wednesday by a landslide in a tunnel at a subway construction site in Lisbon are alive, a spokesman for the METREXPO company said.

17.   The explosion occured in Mapo district near a subway construction site and nearby residents were evacuated, the report said.

18.   The explosion occurred in Mapo district near a subway construction site, he said, but the resulting fire was quickly extinguished.