At least 12 people were killed in the twin attacks claimed by the Islamic State group. The attack had led to a siege at the legislature that ended with four attackers dead.
"We stand in solidarity with the people of Iran in their hour of grief," Pakistan's Foreign Office said.
"We offer our deep condolences to the people of Iran, the government, and the bereaved families and pray for the speedy recovery of those injured," it said.
Pakistan Foreign Office today also said that Pakistan condemns terrorism, "which is a global phenomenon and a common challenge, requiring resolute and coordinated approach to deal with the menace.
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