"The pain of their loss is unimaginable," Labour Party leader David Shearer said in a statement.
Image: A man injured in a fire receives medical attention after a fire took hold of the Villaggio Mall, in Doha's west end, in the Qatari capital of Doha Monday May 28, 2012. Qatar's Interior Ministry said 13 children were among 19 people killed in a fire that broke out at one of the Gulf state's fanciest shopping mall on Monday. The Villaggio opened in 2006 and is one of Qatar's most popular shopping and amusement destinations. It includes an ice skating rink and indoor Venice-style gondola rides. (AP Photo/Osama Faisal)