A
Coast
Guard
source
told
UpstreamOnline
the
rig
slipped
just
below
the
surface
of
the
water
at
10:20
local
time.
The
rig's
sinking
extinguished
a
fire
that
has
raged
since
the
explosion
was
reported,
Coast
Guard
Petty
Office
Tom
Adkeson
told
UpstreamOnline.
Adkeson
said
he
did
not
know
if
boats
would
be
able
to
approach
the
rig
now
that
it
was
no
longer
ablaze,
but
added
safety
was
of
the
utmost
concern.
Video
footage
of
the
Coast
Guard's
efforts
to
douse
the
blaze
can
be
viewed
here.