Berlin (dpa) - German Chancellor Angela Merkel was set to meet Libyan Prime Minister Fayez Serraj on Thursday, with efforts to stabilize the North African country and resolve a refugee crisis there high on the agenda. The harsh conditions endured by migrants seeking to leave Libya were a focus of an EU-Africa summit last week, where Serraj agreed to let United Nations crews access sites in Libya where migrants had gathered. US media reports had revealed that some migrants are being forced into slave auctions.People smugglers have taken advantage of Libya‘s descent into political chaos following the death of former dictator Moamer Gaddafi in 2011. Serraj, the head of a UN-backed government based in Tripoli, only controls a relatively small part of the country. Another large part to the east is controlled by a powerful military general.