'It was a bomb of some kind': Trump insists Lebanon explosion was an attack

The Lebanese government ordered the house arrest of several port officials in connection with the explosion, which killed at least 135 people and injured 5,000 more

President Donald Trump on Wednesday continued to suggest that the massive explosion that killed at least 135 people in Lebanon might have been a deliberate attack, even as officials in Lebanon and his own defense chief said it's believed to have be an accident.

"Whatever happened, it's terrible, but they don't really know what it is," Trump insisted. "Nobody knows yet."

Investigators probing the deadly blast that ripped across Beirut on Tuesday are focused on possible negligence in the storage of tons of ammonium nitrate, a highly explosive fertilizer, in a waterfront warehouse.

The Lebanese government ordered the house arrest of several