1.   Outfitted the scuba instructors handsomely with all new gear.

2.   He said officials had no leads on what caused the explosion, in which seven tourists and another two scuba instructors were injured.

3.   Their companion, David Thomas Larroca, from Pennsylvania, is a scuba instructor who arrived in Manila with the two women earlier in the day, investigators said.

4.   Two scuba instructors were also injured.