Photo taken on March 1, 2014 shows the exterior of Kunming Railway Station in Kunming, capital of southwest China's Yunnan Province. A group of unidentified armed men on Saturday stormed into Kunming Railway Station, causing injuries, said the city police. (Xinhua/Lin Yiguang)  

Photo taken on March 1, 2014 shows the surrounding of Kunming Railway Station in Kunming, capital of southwest China's Yunnan Province. A group of unidentified armed men on Saturday stormed into Kunming Railway Station, causing injuries, said the city police. (Xinhua/Lin Yiguang)

 

Photo taken on March 1, 2014 shows the surrounding of Kunming Railway Station in Kunming, capital of southwest China's Yunnan Province. A group of unidentified armed men on Saturday stormed into Kunming Railway Station, causing injuries, said the city police. (Xinhua/Lin Yiguang)

 

Photo taken on March 1, 2014 shows the exterior of Kunming Railway Station in Kunming, capital of southwest China's Yunnan Province. A group of unidentified armed men on Saturday stormed into Kunming Railway Station, causing injuries, said the city police. (Xinhua/Lin Yiguang)

 

Photo taken on March 1, 2014 shows the exterior of Kunming Railway Station in Kunming, capital of southwest China's Yunnan Province. A group of unidentified armed men on Saturday stormed into Kunming Railway Station, causing injuries, said the city police. (Xinhua/Lin Yiguang)

 

Picture taken on March 1, 2014 shows luggages scattered inside the Kunming Railway Station in Kunming, capital of southwest China's Yunnan Province. Twenty-seven people were confirmed dead and 109 others injured Saturday in a railway station violent attack in southwest Chinese city of Kunming, authorities said. (Xinhua/Lin Yiguang)

 

Picture taken by mobile phone on March 1, 2014 shows luggage scattered inside the Kunming Railway Station in Kunming, capital of southwest China's Yunnan Province. Twenty-seven people were confirmed dead and 109 others injured Saturday in a railway station violent attack in southwest Chinese city of Kunming, authorities said. (Xinhua/Lin Yiguang)

 

Picture taken on March 1, 2014 shows police stand guard outside the Kunming Railway Station in Kunming, capital of southwest China's Yunnan Province. Twenty-seven people were confirmed dead and 109 others injured Saturday in a railway station violent attack in southwest Chinese city of Kunming, authorities said. (Xinhua/Lin Yiguang)

 

Picture taken on March 1, 2014 shows police guard outside the Kunming Railway Station in Kunming, capital of southwest China's Yunnan Province. Twenty-seven people were confirmed dead and 109 others injured Saturday in a railway station violent attack in southwest Chinese city of Kunming, authorities said. (Xinhua/Lin Yiguang)

 

A man looks after an injured person from the Kunming terrorist attack who receives treatment at the First People's Hosptial of Kunming in Kunming, capital of southwest China's Yunnan Province, March 2, 2014. More than 10 terrorist suspects attacked people at the square and ticket hall of Kunming Railway Station at 9:20 pm on Saturday, killing at least 28 civilians and injuring 113 others. Police shot dead five attackers and are hunting for the rest. (Xinhua/Lin Yiguang)

 

An injured man from the Kunming terrorist attack receives treatment at the First People's Hosptial of Kunming in Kunming, capital of southwest China's Yunnan Province, March 2, 2014. More than 10 terrorist suspects attacked people at the square and ticket hall of Kunming Railway Station at 9:20 p.m. on Saturday, killing at least 28 civilians and injuring 113 others. Police shot dead five attackers and are hunting for the rest. (Xinhua/Lin Yiguang)

 

An injured woman from the Kunming terrorist attack receives treatment at the First People's Hosptial of Kunming in Kunming, capital of southwest China's Yunnan Province, March 2, 2014. More than 10 terrorist suspects attacked people at the square and ticket hall of Kunming Railway Station at 9:20 p.m. on Saturday, killing at least 28 civilians and injuring 113 others. Police shot dead five attackers and are hunting for the rest. (Xinhua/Li Meng)

 

Injured people from the Kunming terrorist attack receive treatment at the First People's Hosptial of Kunming in Kunming, capital of southwest China's Yunnan Province, March 2, 2014. More than 10 terrorist suspects attacked people at the square and ticket hall of Kunming Railway Station at 9:20 p.m. on Saturday, killing at least 28 civilians and injuring 113 others. Police shot dead five attackers and are hunting for the rest. (Xinhua/Lin Yiguang)

 

An injured man from the Kunming terrorist attack receives treatment at the First People's Hosptial of Kunming in Kunming, capital of southwest China's Yunnan Province, March 2, 2014. More than 10 terrorist suspects attacked people at the square and ticket hall of Kunming Railway Station at 9:20 p.m. on Saturday, killing at least 28 civilians and injuring 113 others. Police shot dead five attackers and are hunting for the rest. (Xinhua/Lin Yiguang)

 

A nurse tries to help an injured girl from the Kunming terrorist attack at the First People's Hosptial of Kunming in Kunming, capital of southwest China's Yunnan Province, March 1, 2014. More than 10 terrorist suspects attacked people at the square and ticket hall of Kunming Railway Station at 9:20 p.m. on Saturday, killing at least 28 civilians and injuring 113 others. Police shot dead five attackers and are hunting for the rest. (Xinhua/Li Meng)