A man injured in a house explosion in New Mexico opened fire on his rescuers, killing two people and injuring two others, before committing suicide.
The gunman, whose identity was not released, had been burned in the house fire and had sought help from his neighbour, according to Roswell Police.
The neighbour and an emergency worker were helping the man when he started shooting, killing both of them before turning the gun on himself.
The Roswell Fire Chief and a four-year-old child were injured and were listed in critical condition.
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Police have not determined the cause of the explosion or the motive for the shootings.
AP