Death toll in Pakistan bombing rises to two

The blast was aimed at soldiers returning to their barracks by truck after carrying out security duties at polling stations for by-elections in the city on Thursday.

"An army soldier, who had sustained injuries in the attack died overnight of wounds, rising the toll in the attack to two," a senior security official told AFP.

The official who did not want to be named said the condition of 10 other soldiers wounded in the attack was stable.

A local intelligence official also confirmed the new toll.

The attack initially killed a civilian and left 16 more people including 11 soldiers wounded in the violence-plagued port city.

A bloody wave of killings and kidnappings has hit Karachi, a sprawling metropolis of 18 million people on the Arabian Sea and Pakistan's economic heart.

Bloody gang wars fed by ethnic and political bitterness, drugs and the Taliban, have created a culture of impunity, and the past two years have seen record death tolls.

In the first six months of 2013, 1,726 people were killed in Karachi compared with a previous high of 1,215 in the same period last year, according to the Human Rights Commission of Pakistan.