A car plowed into people visiting a Christmas market in Magdeburg on Friday, according to German officials. At least two people were killed and almost 70 others were injured.

German authorities consider the incident to be terrorism, U.S. law enforcement sources told ABC News.

According to Saxony-Anhalt Prime Minister Reiner Haseloff, a small child and an adult were killed in the attack.

At least 15 of those injured were seriously injured, according to a local official.

People are still coming to the hospital for treatment, a German security official said.

A suspect was arrested in the attack, which sent shoppers fleeing in panic, US sources said.

According to Haseloff, the suspect is a 50-year-old doctor from Saudi Arabia who has lived in Germany since 2006. According to Haseloff, a rental car was used in the attack.

The motive is currently unknown, US sources said.

Extensive police operations are underway at the Magdeburg Christmas market, which is now closed, local police said.

“My thoughts are with the victims and their families,” said Chancellor Olaf Scholz. “We stand by your side and by the people of Magdeburg. My thanks go to the dedicated rescue workers in these anxious hours.”

Magdeburg is about two hours’ drive west of Berlin.

This incident comes almost eight years to the day after a terrorist attack at another German Christmas market. On December 19, 2016, a man drove a truck into a crowd at a market in Berlin, killing 13 people and injuring dozens.

The possibility of vehicle ramming attacks is a continuing concern for U.S. law enforcement, particularly leading up to New Year’s Eve. A joint threat assessment on New Year’s Eve in New York’s Times Square found that the use of vehicle ramming, alone or in conjunction with other tactics, “has become a recurring tactic used by threat actors in the West.”

According to NYPD Assistant Commissioner for Counterterrorism Rebecca Weiner, out of an abundance of caution, the NYPD will expand its resources to similar areas in the city, including Christmas markets.

“We know this is a very festive time, it’s a busy time in the city and we will ensure that all of our holiday markets and all of our holiday activities are protected by our counter weapons teams and by patrolling officers.” “, all of our anti “Terror officers, our critical response command,” Weiner told ABC-New York station WABC.

This is a developing story. Please check back for updates.