Ethiopian authorities have suspended four senior politicians in the latest round of a campaign against corruption among leaders of the Horn of Africa country, officials said on Monday.

A serious shortfall in the food aid pipeline to Ethiopia may develop within six weeks if donors do not respond soon to an appeal for more resources, Wagdi Othman, information officer for the UN World Food Programme (WFP) in Addis Ababa told IRIN on Thursday.

Steps will be taken against 14 NGOs said to be operating illegally in East Shewa Zone of the Oromiya Regional State, the official Walta Information Centre reported on Thursday. The NGOs, which are engaged in reproductive health care, kindergarten and other social development activities without formal agreements with the government, include a number of international and local church-based organisations.

The Ethiopian Federal Supreme Court has adjourned to consider a request from police investigators for more time to gather evidence against former Defence Minister Siye Abraha and other former government officials and businessmen charged with corruption, local newspapers reported on Tuesday.

As part of a major crackdown on corruption, the Ethiopian government has launched a nationwide survey to canvass people's views on the subject.