Nigerians living in Egypt say police have started to detain them over unpaid residency fees as it enforces a new law that compels all foreigners to pay for their visa overstay fees and residency permits in US dollars. The law is part of a series of measures aimed at augmenting foreign currency, after Egypt suffered a shortage of US dollars amid rising debt and inflationary pressures. The announcement caused panic among Nigerians and other migrant communities in Egypt who struggle to access foreign currency. Several have told local media they are being harassed by police due to their failure to…