An international refugee agency says that more than 430 000 people have fled violence in Cameroon's restive English-speaking regions and are hiding in rural areas with few resources.The Norwegian Refugee Council, one of several humanitarian organisations offering support, said on Wednesday it is assisting the displaced by providing shelter and supplies to needy families. David Manan, the Norwegian group's country director for Cameroon, called for more international aid.He said there are too few agencies on the ground to provide the amount of aid needed. He said many people are hiding in the bush.Cameroon's English-speaking separatists have been protesting since 2016 against what they claim is discrimination by the French-speaking majority. Their protests were initially peaceful, but in response to a government crackdown some separatists are waging a violent campaign.* Sign up to News24's top Africa news in your inbox: SUBSCRIBE TO THE HELLO AFRICA NEWSLETTERFOLLOW News24 Africa on Twitter and Facebook.