Complex sentence: On 3 June 2011, Saleh was injured in a bomb attack on his presidential compound, multiple C-4 (explosive) charges were planted inside the mosque and one exploded when the president and major members of his government were praying.
Split into simpler sentences: On 3 June 2011, Saleh was injured in a bomb attack on his presidential compound. Multiple C-4 (explosive) charges were planted inside the mosque and one exploded when the president and major members of his government were praying.