Updated

The Latest on explosion in Afghanistan (all times local):

1:45 p.m.

A government official says at least 18 people have been wounded in an explosion in the city center of Afghanistan's capital Kabul.

Ismail Kawasi, spokesman for the Public Health Ministry, says 18 wounded have been brought to hospitals, but he expects the casualty count to rise as ambulances bring in more victims.

Thick, dark smoke can be seen rising from the site of the Saturday explosion near the old Interior Ministry building.

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1:25 p.m.

An official says a powerful explosion has rocked the city center in the Afghan capital of Kabul.

Thick, dark smoke can be seen rising into the sky following a loud explosion near the old Interior Ministry building Saturday.

Nasrat Rahimi, deputy spokesperson for the ministry, says it's not immediately clear if anyone was killed or wounded.

However, Associated Press reporters saw ambulances rushing toward the site.

Kabul has been the site of numerous bombing attacks claimed by the Islamic State group and the Taliban over the last year.