Volunteers picking up trash on the Seattle waterfront found a sneaker with human remains inside Tuesday, according to U.S. media. The foot was found on the shore near Centennial Park and sent for medical examination, the Seattle Times reported. At least a dozen human feet have been discovered off the B.C. and Washington State coasts since 2007, though police have yet to report any signs of foul play. The BC Coroners Service said the feet appear to have separated naturally from bodies in the water. There have also been a number of hoaxes, including a series of child-seized shoes that were stuffed with non-human remains on a Victoria beach in 2012.