EXPLAINER: What are the latest clues in China’s plane crash?

WUZHOU, China (AP) — Add rain to the challenges facing Chinese investigators as they try to determine why a jetliner with 132 people aboard crashed in remote mountains. Amid difficult conditions, officials say they have recovered what they believe is the cockpit voice recorder, one of two “black boxes” carried by the China Eastern Airlines Boeing 737-800. The search was temporarily suspended due to a downpour. The plane was flying at 29,000 feet on Monday when it nosedived into a gap in the mountains outside the southern city of Wuzhou. Rescuers with sniffer dogs, hand tools and drones also found wallets, identity cards and debris. No one is believed to have survived Monday’s crash and search teams said Wednesday they had recovered human remains.