Hospital authorities in Zhejiang province have promised to improve the protection of medical workers, as mourning continues for a doctor in the province who was stabbed to death last week.

Wang Yunjie, 46, chief physician of the ear, nose and throat department at First People's Hospital of Wenling, was killed on Friday. Police say his assailant was Lian Enqing, who was unsatisfied with surgery he had at the department last year.

Lian, 33, a native of Wenling, also allegedly injured two other physicians in the attack, which led to calls from Chinese healthcare workers for an end to violence against medical staff.