Bangladeshi authorities have told three international aid agencies to stop providing support to Rohingya refugees who arrived from neighbouring Burma.
Officials claim that the agencies are exceeding their mandate by supporting illegal migrants and that the aid was encouraging more Rohingyas to cross the border.
British based Muslim Aid and French NGOs Médecins Sans Frontières and Action Contre La Faim are the charities which have been blocked from providing aid.
Aid workers have criticised the move, saying the already terrible conditions in camps will worsen.
The agencies provided health care food and water to thousands of refugees.
Over 300,000 Rohingya are thought to have crossed the border, fleeing violence in Burma’s Rakhine state.
Human Rights Watch this week accused Burmese troops of killing and raping Muslim Rohingyas during clashes in June.