DUBAI : The United Arab Emirates could reintroduce a de-facto overnight curfew in some areas of the country if there are a high number of COVID-19 infections there, a government official said.The Gulf Arab state has seen the number of cases rise this week to over 400 for the first time since mid-July, including 461 infections and two deaths in the 24 hours to Thursday.Asked if the national sterilisation programme, which had included a night time curfew, could again be enforced, National Emergency Crisis and Disaster Management Authority (NCEMA) spokesman Seif al-Zahri told Emirates TV: "Yes, that's possible in certain areas where we observe high infection cases."NCEMA, which posted a clip of the interview on its Twitter page late on.