Fighting that started a month ago between Sudan and South Sudan along the oil-rich Heglig region on the border has provoked increased repression in Sudan, noticeably on the media, report the Arabic Network for Human Rights Information (ANHRI), Human Rights Watch, Index on Censorship and the Committee to Protect Journalists (CPJ). 'Sudan is cracking down on civil and political rights in the face of conflict and opposition,' says Daniel Bekele, Africa director at Human Rights Watch. 'But locking up critics and silencing dissent will not solve Sudan's problems.'