[UPDATES BELOW] A 15-year-old girl was seriously injured this morning after the driver of a Q59 bus struck her in Williamsburg.

According to the NYPD, the unidentified teen was crossing north on Grand Street at Union Avenue at around 8:45 a.m. this morning. A Q59 bus driver traveling southbound on Union made a left turn on Grand and struck her, according to authorities.

(note that the bus that struck the victim was a Q59, not an N64)

The FDNY says the victim was transported to Bellevue Hospital in serious but stable condition; the NYPD says she suffered a serious leg injury. The MTA tells us "the incident is under investigation."

Update 2:04 p.m.: Transportation Alternatives Executive Director Paul Steely White offered the following statement on this morning's incident:

We are outraged to hear the news that an MTA bus driver has struck and seriously injured a 15-year-old who was in a crosswalk with the right of way at Grand Street and Union Avenue in Williamsburg, Brooklyn this morning. The victim is reportedly likely to lose her leg.

We commend the NYPD’s Collision Investigation Squad for arresting the
driver and issuing a summons for failure to yield under Section 19-190
of the city’s administrative code, also known as the Right of Way Law.

MTA bus drivers struck and killed nine pedestrians last year, and
eight of those cases involved a driver failing to yield while making a
turn. MTA bus operators must exercise due care and yield the right of
way to pedestrians, and they should be setting the standard for driver
behavior in the Vision Zero era.

We urgently renew our call for the MTA to become a full partner in New
York City’s effort to eliminate traffic fatalities and serious
injuries. We call on Governor Cuomo to instruct MTA Chairman Thomas
Prendergast to work in partnership with City Hall’s Vision Zero Task
Force, which includes several city agencies.

Update 3:38 p.m.: According to the NYPD, bus driver Francisco DeJesus has been arrested and charged with failure to exercise due care. The charge is part of the city's new Administrative Code Section 19-190, which makes injuring or killing a pedestrian with the right of way a misdemeanor crime.

In December, an MTA bus operator was arrested for fatally running over a pedestrian in East Flatbush; MTA bus drivers briefly refused to leave their depots in protest over that arrest.

The teenage victim in today's incident is expected to lose her leg.