(NewsNation Now) —  A 14-year-old student was stabbed multiple times and a security guard was shot outside a high school Wednesday afternoon in Buffalo, New York, authorities said.

Authorities initially reported the male student was shot, but a Buffalo police spokesperson later told NewsNation affiliate WIVB-TV the student was stabbed. The teen made it out of surgery and is recovering, the news station reported.

The guard suffered a non-life-threatening leg wound, Deputy Police Commissioner Joseph Gramaglia said.

Gramaglia said multiple people were involved in a dispute near the parking lot at McKinley High School, which broke out around 3:45 p.m. after school had ended for the day.

He said a person pulled out a gun and fired multiple shots. 

The location of the shooting suspect or suspects is currently unknown.

Video on social media showed the FBI arriving on the scene with weapons.

There were about 100 students still in the school at the time for after-school activities, Gramaglia said. They were told to shelter in place and once the scene was cleared, were in the process of being reunited with families, he said.

“The impact of what happened at McKinley High School late this afternoon is still incalculable,” Buffalo Mayor Byron Brown said in a tweet. “Families are shaken, educators and students are distraught, and many of our children are scared. We will provide more details as they become available.”

Officials said the school would be going to remote classes for the next few days, and possibly longer, in the wake of the shooting.

The nearby Buffalo State College canceled evening classes and activities, advising students to shelter in place. A helicopter circled overhead.

“My team and I are closely monitoring a shooting at McKinley High School in Buffalo,” Gov. Kathy Hochul tweeted. “@nyspolice are supporting local law enforcement and we have offered assistance to local officials. If you are in the area, please follow guidance from law enforcement and local officials.”

McKinley serves about 1,200 students from grades 9 through 12.

The Associated Press and NewsNation affiliate WIVB-TV contributed to this report.

Check back for details as this story is developing.