Security forces launched a probe into a suicide attack at a police officer's funeral that killed 35 people in volatile northwestern Pakistan where troops are fighting pro-Taliban militants, officials said Saturday. More than 60 people were also wounded Friday night when the bomber blew himself up amid some 800 mourners who had gathered for the funeral of Javed Iqbal, a senior police officer who was killed in a roadside bombing earlier in the day. Among the dead were Iqbal's 16-year-old son, Ghazan. Deputy Inspector General of Police Syed Akhtar Ali Shah said a probe was launched. He said although no one claimed responsibility, police were confident of arresting those who orchestrated the suicide attack in Mingora, about 170 kilometers (105 miles) from Peshawar in the Swat Valley.