(CNN) A suspect is in custody Thursday after opening fire overnight on the Cuban Embassy in Washington, DC.

The suspect's motive is unknown at this time.

In a statement, the DC Metropolitan Police Department identified the suspect as 42-year-old Alexander Alazo of Aubrey, Texas. He was arrested without incident at the scene and charged with assault with intent to kill, the statement said.

DC police said in their statement that the suspect was found with an assault-style rifle. A police report identified the weapon as an AK-47. It also noted a "small baggie" of "white powdery substance" was recovered from the vehicle. The report listed suspected hate crime as one of the offense properties, but noted that the suspect's motivations were unknown.

According to the DC police and US Secret Service (USSS), officers responded to reports of shots fired around 2:15 AM. USSS said the individual was arrested "for being in possession of an unregistered firearm as well as unregistered ammunition, assault with the intent to kill, and possession of a high capacity feed device."

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