Afghan President Hamid Karzai was returned to power after election officials cancelled a "needless" run-off.
A suspected Taliban suicide bomb killed 35 people in the Pakistani city of Rawalpindi on Monday.
Karzai's election rival, Abdullah, to announce on Sunday whether he will take part in next week's run-off vote.
Afghan election officials defended plans to open more polling centres for next week's presidential run-off.
Pakistani forces found a passport of an Islamist militant linked to two hijackers involved in the Sept. 11 attacks.
Taiwan President Ma Ying-jeou said on Thursday the U.S. government was stalling Taiwan's request for F-16's.
The blast came several hours after U.S. Secretary of State Hillary Clinton arrived in Pakistan.
Secretary of State Hillary Clinton arrived in Pakistan on Wednesday, pledging a fresh start in relations.
Police took control of a stranded high-speed train after it was stormed by a tribal group linked to Maoist rebels.
Afghanistan's top election official said on Monday he will not stand down ahead of the presidential run-off.