Mohammed Awad bin Hamam, governor of Yemen's central bank, has said that injecting more cash in the exchange market is possible after an $80m injection failed to raise the country's rial currency, Reuters has reported. The rial has fallen about 12% from a level of 208 versus the dollar in mid-January. He said that demand is expected to decrease as supply of foreign currencies like the dollar, increase in coming days when remittances would be sent to Yemen by expatriates.