BOSTON (AP) — Two Massachusetts men were arrested Tuesday in connection with a weekend explosion at Harvard Medical School, authorities said.

Logan David Patterson and Dominick Frank Cardoza face charges of conspiracy to damage by means of fire or an explosive, according to the charging document. Patterson, an 18-year-old from Plymouth, and Cardoza, a 20-year-old from Bourne, were arrested Tuesday morning and were due to be arraigned in federal court later in the day.

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