A loud explosion has been heard in the western part of the Afghan capital, Kabul, police say.
Reports said the blast took place at the Darulaman crossroads, home to Afghan government buildings. Witnesses said a car was burning there.
The details of the incident are sketchy and there is no report about any losses caused by the blast yet.
Despite tight security in Kabul, the city has seen some high-profile attacks by Taliban militants in recent months.
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