>>15807460Russia said that it began a military buildup in the region, training the separatists, supplying weapons and equipment.[47] Both the pro-Russian separatists and Ukrainian government forces also accused each other of being responsible for high-profile abductions.[48] Ukrainian authorities said they were investigating a high-profile kidnapping in Luhansk of a Russian national and a Swiss citizen.[49] There have also been several allegations of abuse of children in the separatist-held territory. Human rights groups and journalists have accused the separatists of abducting and imprisoning children.[50]