BOGOTA, Colombia (AP) — At least 11 people have been killed in a landslide in northwestern Colombia, local authorities said on Wednesday, a day after heavy rains unleashed the wall of mud and debris on crowded neighborhoods and buried some dozen homes. Rescue workers continued to dig through the rubble and search for survivors in Colombia’s second-largest city of Medellin and the nearby mountainous town of Bello, where at least 15 people remain missing.