A series of militant attacks across Pakistan Tuesday left at least 27 people dead, including two officials overseeing security for a polio vaccination drive

A series of militant attacks across Pakistan Tuesday left at least 27 people dead, including two officials overseeing security for a polio vaccination drive.
  
Pakistan's armed forces launched a major offensive against militant strongholds in June which stemmed the tide of near-daily attacks the country had endured in recent years, but violence now appears to be on the rise again.
  
Five separate strikes hit on Tuesday, including two roadside bombs, an attack on a military post and a car bombing targeting a judge. At least five soldiers and 15 militants were killed in a gunfight after militants attacked a checkpost of the paramilitary Frontier Corps (FC) in Orakzai, one of seven restive semi-autonomous tribal regions on the Afghan border.
  
"More than 50 militants attacked the checkpost. Two soldiers embraced shahadat (martrydrom) while 15 terrorists were killed in an exchange of fire," a senior security official told AFP.
  
Six soldiers sustained injures in the attack, he said, adding that the militants fled after the FC troops retaliated. Another security official confirmed the incident and casualties.