A woman has been arrested for drug possession after being questioned by police at the Turpan train station in the Xinjiang Uygur autonomous region and reportedly confessed she swallowed 78 pellets containing a total of 348 grams of heroin, China News Service reported on Sunday.

Police said the woman raised their suspicions by her erratic behavior and attempts to evade a routine security search at the train station on Sept 1.

During a pat-down, police found eight pellets of what they suspected was heroin in her underwear, wrapped in clear plastic. The woman then confessed that she had swallowed 78 pellets of heroin on Aug 30, police said, and took a train from Chengdu to Turpan. She had planned to transfer at Turpan station to the city of Shihezi. However, when the train was about to arrive in Turpan, she passed eight pellets and hid them in her underwear.