FREETOWN, Sierra Leone (AP) — Churches across Sierra Leone held special services Sunday in memory of the more than 450 people who were killed in mudslides and flooding earlier this week. More than 600 people remain missing and rescue officials have warned that the chances of finding survivors are decreasing each day. The Inter-Religious Council called for the services to be held Sunday in honor of the deceased, as special prayers and recitals were offered in mosques Friday and Sunday. The preacher at Buxton Memorial Methodist Church in Freetown, the capital, offered a sermon that looked at mankind's contribution to the disaster, as a gospel band rendered the song "Papa God Sorry for Salone (Sierra Leone).