Libya: number of migrants in detention has decreased (official) The number of migrants held by Libyan authorities has recorded a sharp decline over the past year, from more than 27,000 in May 2017 to only 5,200 today, a senior Libyan official says, adding that the number of detention centres in the country has gone from 53 to 32. IMAGES AND SOUNDBITESREFILE WITH CORRESPONDING AFP TEXT STORY