Polio vaccination campaign was suspended in three districts of Karachi over security concerns on Monday, officials said.
The sources said that the fresh campaign was scheduled to start from Monday but the administration failed to provide proper security to the polio teams following which the campaign was suspended.
Due to the suspension, polio drops will not be administered to children in Gadap Town, a high-risk area from where two new polio cases were reported recently.
Anti-Polio teams have been attacked in different parts of the country. On Saturday, militants abducted eleven teachers, who were taking part in the polio campaign, from a school in Bara tehsil of the Khyber Agency.
Anti-Polio campaigners were also targeted in Karachi.
More than a dozen anti-polio workers have been killed by extremists in various areas of the country while the United Nations has ranked Pakistan as the most dangerous country regarding polio ratio among children.
