Tang Shengzhi
Tang Shengzhi dispatched his army on the morning of 4 April and took charge of the situation but the All-China Federation of Trade Unions said that they could not agree to release their hostages without getting favorable terms for them from the Japanese, and even when Tang Shengzhi tried to send them back the "jiuchadui", armed communist picketers who were spying on Tang's garrison headquarters, obstructed him. Due to the deliberations of the Japanese consul general, they were finally returned on 7 April.