A surge in clashes between rival armed groups aligned with government and opposition forces in South Sudan this year has killed dozens of civilians and unleashed “unimaginable violence” that could amount to war crimes, according to Amnesty International. Al Jazeera quotes the rights watchdog as saying that fighters on all warring sides indiscriminately razed entire villages during an upsurge in fighting between June and October in Western Equatoria state that also forced tens of thousands to flee.