The National Health and Family Planning Commission said Monday that 20 of the 143 patients injured in the Kunming railway station terrorist attack are still in critical condition.

The commission said 104 emergency operations have been performed and they have dispatched another five doctors to help treat the victims.

The five are skilled experts in dentofacial surgery, hand surgery, chest surgery and urinary tract surgery, putting the total number of specialists dispatched to Kunming at 29.

Several knife-wielding assailants stabbed and slashed passengers with long-bladed knives at the square in front of the Kunming Railway Station and the ticket hall at 9:20 p.m. Saturday, killing 29 people and injuring more than 140 others.