Governor Khyber Pakhtunkhwa Barrister Masood Kausar on Saturday strongly condemned the Nato's air attack on a military check-post in Mohmand tribal region and termed it an attack on Pakistan's sovereignty. The incident was being taken very seriously, he said, adding that such attacks would not be tolerated in future. He also urged the government to raise the issue at the highest level. Answering a query, he said that information is being gathered and this attack will not go unnoticed.