TOPSHOT - Family members gather as they wait for rescue teams searching for missing passengers at the Lake Toba ferry port in the province of North Sumatra on June 22, 2018, after a boat capsized on June 18. Indonesian authorities on June 22 turned to cutting-edge sonar technology as they search one of the world's deepest lakes for victims of a deadly ferry disaster. Search teams hope the equipment, on loan from Indonesia's navy, will help find the overloaded boat which sank June 18 on Lake Toba, a picturesque tourist destination in Sumatra. / AFP PHOTO / Ivan Damanik