Complex sentence: Several weeks after the elections, when the authorities attempted to evict the remaining protesters occupying one of Bucharest's central square, violence erupted and, as the police and gendarmerie retreated, protesters attacked several state institutions.
Split into simpler sentences: Several weeks after the elections, when the authorities attempted to evict the remaining protesters occupying one of Bucharest's central square, violence erupted. As the police and gendarmerie retreated, some protesters attacked several state institutions.