Bangladesh’s government has ordered three global relief organizations to stop providing aid to Rohingya refugees from neighboring Myanmar, reports the BBC.

Authorities told Doctors Without Borders, Action Against Hunger and Muslim Aid to cease providing food, water, and health care to thousands of Muslim Rohingyas, saying the charities are exceeding their mandate by aiding refugees who entered Bangladesh illegally.

An estimated 300,000 Rohingyas have flooded into Bangladesh in recent months, fleeing fighting between Muslims and Buddhists in the Rakhine state in Myanmar, formerly Burma. Bangladesh has recognized fewer than 10 percent of the arrivals as legitimate refugees and says the actions of aid groups encourage people to enter the country illegally.

Relief workers say that an abrupt withdrawal of aid will worsen humanitarian conditions in border camps in the Cox’s Bazaar district of Bangladesh.