Multiple sources are reporting that a New York City police officer was shot in the head earlier this evening and is in serious condition or worse.

NBC 4 New York reports:

Police were first called to the area for a report of gunshots fired and an armed man riding a bicycle around 102nd Street, a senior police official tells NBC 4 New York.

When officers caught up with the man several blocks north, on 120th Street near the FDR Drive, a shootout ensued, the official said. An officer was shot in the head during the shootout and taken to Harlem Hospital.

Another man who was wounded by a gunshot was found nearby, although police are unsure if he is the suspect or another victim.

Mayor Bill de Blasio is reportedly at Harlem Hospital now.

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Update

Terrible news:

This is a developing story; Twitchy will update it as details become available.