OLEY, Pa. (AP) — Authorities say a 5-year-old boy has died while playing in a stormwater retention basin on a family farm in southeastern Pennsylvania. Andrew Martin was playing with some other boys in several feet of water that had collected Thursday in the basin in Oley, Berks County after a day of heavy rains. They were in a small kayak or paddle board that flipped over about 8:15 p.m. The boys who were with Martin ran into the family home to get help and a parent called 911. But Martin was unconscious in the pond when responders arrived and was later pronounced dead at a hospital. Authorities say the death was not related to the flash flooding that occurred throughout the region on Thursday. In another section of Berks County Thursday, a pregnant woman and her son died after their car was swept away by floodwaters. An investigation into the death is ongoing.