Complex sentence: Firing mortars into the predominantly Alawite Mezzah 86 district near the Presidential Palace, rebel forces hit the Prime Minister's offices and Mezzah's military airport, killing 3 civilians and injuring 12 others.
Split into simpler sentences: Firing mortars into the predominantly Alawite Mezzah 86 district near the Presidential Palace. Hitting the Prime Minister's offices, and Mezzah's military airport, killing 3 civilians and injuring 12 others.