"A third rocket landed on a structure in the Shaar
Hanegev Regional Council in southern Israel," it added.
Wednesday's bombing struck next to a children's hospital and blood bank in the Shaar district, and near a school in the Salah al-Din district, residents and the Observatory said.
"The Shaar neighbourhood was burned down between yesterday and today."
The Shaar gas field -- one of the biggest in the central province of Homs -- has been the site of fierce fighting between Daesh militants and Syrian government loyalists.
Daesh seized the Shaar gas field last week, but Syrian armed forces and pro-government militias have fought hard to get it back.
The rocket exploded in mid-air as it headed towards the Shaar
HaNegev region of southern Israel which lies along Gaza's northeastern border, a spokesman said.
Rabbi Wilfred Shuchat shows how the achievement of political rights for Jews in Canada galvanized immigration, leading the English/German/Polish congregation of the Shaar
to create the second oldest congregation in Canada, the oldest in the Ashkenazic tradition.