A
witness
told
investigators
he
saw
three
men
jump
out
of
a
small
truck
at
a
pumping
station
in
an
area
known
as
al-Maidan,
southwest
of
the
city
of
el-Arish,
and
open
fire
on
the
pipeline,
the
security
sources
said.
This
was
followed
by
a
large
explosion
heard
across
the
city
and
witnesses
said
15-metre
high
flames
could
be
seen
shooting
up
from
the
pipeline,
Reuters
reported.
A
local
hospital
said
one
man
was
admitted
with
burns
from
the
blast,
which
also
set
olive
groves
and
shacks
in
the
area
on
fire.
Fire…