UN chief in Afghanistan: president's office
UN Secretary General Ban Ki-moon arrived in Kabul on Monday to hold talks with Afghan President Hamid Karzai, the president's office told reporters.
"Today's guest is His Excellency Ban Ki-moon, the UN secretary general," presidential spokesman Siamak Herawi told reporters gathered at Karzai's palace for a press conference, reported AFP .
The UN mission in Afghanistan would not confirm the trip. High-level visits to the war-torn country are usually kept under wraps for security reasons.
A bomb struck a convoy of road construction workers heading to their site in eastern Afghanistan early Wednesday, wounding an Indian engineer and three Afghans, police said.
The blast -- similar to scores blamed on extremists behind a bloody insurgency in Afghanistan -- hit the vehicles after they left the southeastern city of Khost, the police chief of Mando Zayi district told AFP.
"They were on their way to their work site when their vehicles were struck by an explosion and three people, including a foreign engineer -- an Indian engineer -- were wounded," said the official, Mohammad Jamal.
It was not clear if the blast was a landmine or remote-controlled bomb, Jamal said. Two vehicles were damaged in the explosion, he said.
The Indian government runs several important reconstruction projects in Afghanistan as part of international efforts to help the country rebuild after nearly three decades of war.