At least seven people have died in a bomb blast that occurred Tuesday morning in Afghanistan's Mazar-Sharif city, reported Khaleej Times News citing police. Police said that six others are injured in the incident.


The blast hit a vehicle carrying oil workers in northern Afghanistan.


"Today at around 7 a.m. a blast took place in ... Balkh on a bus which belonged to Hairatan oil employees," reported The Telegraph citing Mohammad Asif Waziri, police spokesman for the northern province of Balkh.


"The bomb was placed in a cart by the roadside. It was detonated as the bus arrived," AFP quoted Waziri as saying.


The blast is along the series of explosions that shook the Taliban-run country in the last four months. 


Earlier in October, at least two people were killed and 18 injured in a blast that occurred near the Ministry of Interior (MoI) in Kabul, Afghanistan.


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In a similar incident in September, an explosion was heard in the vicinity of Wazir Muhammad Akbar Khan Grand Mosque in Kabul in Afghanistan during Friday prayers. This was after five people sustained injuries in two blasts that rocked Dasht-e-Barchi area on the western edge of Kabul, police spokesman Khalid Zadran said.


He added, "Explosive devices planted on two bicycles went off in Dasht-e-Barchi locality late evening today, injuring five persons," Zadran was quoted as saying. He further said that an investigation on the matter was underway.


Reacting to the blasts, Interior Ministry spokesman Abdul Nafi Takor said on Twitter that a few people were slightly injured in the two blasts.


In a similar incident, two staffers of the Russian Embassy in Kabul were killed following a blast near the mission's premises in the same month, the Foreign Ministry in Moscow said.