The trip by Sartaj Aziz, Advisor to the Prime Minister on National Security and Foreign Affairs, comes amidst fresh allegations by top officials in Kabul that Pakistani agencies are abetting the Taliban insurgency.
"He (Aziz) will discuss various bilateral issues during his meetings with President Karzai and senior officials," a Foreign Office official said.
The issue of reopening the Afghan Taliban's office at Doha, which has been temporarily closed down, will figure in the talks, officials said.
However, ties plummeted due to a controversy over the name and flag of the Taliban office and Karzai's chief of staff, Karim Khorram, said yesterday that the militants' political bureau in Qatar was an effort by Pakistan and the US to break up Afghanistan.
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Afghan National Security Advisor Rangin Dadfar Spanta alleged yesterday that Pakistani agencies were involved in the killing of his brother Ahmad Wali Tahiri, a government prosecutor who died in an attack on Wednesday that was claimed by the Taliban.
Sartaj Aziz, an ethnic Pashtun, is an experienced leader who served as Sharif's foreign minister in the 1990s, but his recent remarks that Kabul should cede some provinces to the Taliban created a storm and an angry Karzai said Pakistan was trying to divide Afghanistan into "fiefdoms".
Aziz told the media at a joint news conference with visiting British Foreign Secretary William Hague on Wednesday that the controversies about the Taliban's Doha office will be resolved.