Officials said the two fire trucks were responding to the same emergency call in the borough of Manhattan Saturday when they collided with one another, sending a dozen firefighters to the hospital, the New York Post reported.

Among those seriously injured was Lt. Adrienne Walsh, the first female elite rescue squad member in the history of the New York Fire Department.

The emergency call to which the units were responding turned out to be a false alarm, officials said.

The Post said, according to witnesses, another firefighter was injured Sunday morning while fighting a Staten Island fire. Witnesses said firefighters could be seen trying to resuscitate their injured co-worker.

Meanwhile, officials told the Post firefighters pulled a woman with stab wounds from a different fire at nearly the same time as the Staten Island blaze. The woman's condition was unknown.