Anchors got an unexpected jolt when a nearby home exploded.Two people who were seriously injured in Friday's house explosion, a25-year old and a 60-year old, remain in critical condition Saturday.Both men were taken to a burn unit at Brooke Army Medical Center in SanAntonio.Local and state Fire Marshals are meticulously sifting through the rubble to determine the cause of the blaze.A natural gas leak is the suspected cause.