The tough new measures came as Dhaka struggled to cope with the scale of the "unprecedented crisis", with Bangladesh's prime minister Sheikh Hasina heading for the United Nations General Assembly to plead for global help.
Hatua hizo ngumu mpya zilikuja wakati Dhaka ikijitahidi kukabiliana na ukubwa wa "mgogoro ambao haujawahi kutokea", huku waziri mkuu wa Bangladesh Sheikh Hasina akielekea kwenye Baraza Kuu la Umoja wa Mataifa kuomba msaada wa kimataifa.