Myanmar security forces have resumed loudspeaker broadcasts near its border with Bangladesh ordering Rohingya Muslims to immediately leave a strip of no-man’s land between the two countries, refugees said on Sunday. Around 6,000 refugees from the persecuted minority have been camping on the narrow stretch of land since fleeing a brutal military crackdown in Myanmar’s west last August. Myanmar had agreed in February to stop using loudspeakers to order the stranded Muslims to leave the area immediately and cross into Bangladesh. But the loudspeaker messages resumed this weekend without warning, Rohingya community leaders said, exacerbating tension along the restive border zone. The refugee crisis has strained ties between Bangladesh and Myanmar.