According to local reports, the explosion, which occurred at 04:00 GMT in the Wazir Akbar Khan region, targeted Afghanistan’s National Security Council.
A number of witnesses said that the blast was in the building of Afghan Roshan Telecom service provider.
The fire is still blazing in the building and security forces have blocked the routes to the scene of explosion.
The explosion has reportedly been so powerful as the windows of the nearby buildings or those one km farther than the site of explosion have been broken.
The blast also shattered windows of the representative office of the Islamic Republic News Agency (IRNA) located 500 meters from the site of the incident.
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Kabul, May 31, IRNA – A big explosion occurred near the German embassy in the Afghan capital of Kabul on Wednesday morning.