UPDATE 7:13 a.m. EST:
President Donald Trump on Friday responded to the latest attack in Paris tweeting it "will have a big effect on the presidential election" in France.
The president's first response came during a news conference with Italian Prime Minister Paolo Gentiloni at the White House. "It looks like another terrorist attack," he said. "It never ends," he added.
"We have to be strong, and we have to be vigilant, and I’ve been saying it for a long time."
UPDATE 6:27 p.m. EST:
ISIS claimed responsibility for the Paris shooting on Thursday, CNN reported. Released by the group's-media wing, Amaq, the statement said the fighter was a Belgian national.
UPDATE 5:10 p.m. EST:
French police said they're looking into potential accomplices involved in Thursday's shooting in Paris, French Ministry of Interior Spokesman Pierre-Henry Brandet told BFMTV.
Prosecutors also said they're exploring terrorism as a possible motive.
UPDATE 4:24 p.m. EST:
A French official said police officers were "deliberately targeted" near the Champs Elysees, CNN reported.
There's also more clarity on what exactly happened. A car stopped at 102 Champs Elysees in front of a police officer, ministry spokesman Pierre Henry Brandet said. A man subsequently emerged from the car and opened fire on the police with an "automatic weapon."
The police returned fire and killed the attacker.
UPDATE 4:13 p.m. EST:
Shots have been fired at a new location near the Champs Elysees, Reuters reported.
UPDATE 4:13 p.m. EST:
An attacker has been killed in a shooting in Paris, according to the French Interior Ministry.
UPDATE 4:07 p.m. EST:
During a joint press conference with Italian Prime Minister Paolo Gentiloni, President Trump extended his condolences to France where a shooting recently had taken place near the Champs Elyesees.
"It looks like another terrorist attack," Trump said. "What can you say? It never ends."
ORIGINAL STORY: One officer has been killed Thursday in a Paris shooting near the Champs Elysees, CNN affiliate BFMTV reported. Another officer was seriously injured, and the attack has since been "taken down."
A massive police presence shrouded the area, and authorities are asking the public to refrain from entering the area.
Witnesses reported hearing about a dozen or so shots.
The incident occurred as France continues to gear up for its presidential elections. The country remains under an extended state of emergency after a series of terrorism-related attacks that occurred since the Paris attacks in November 2015 that killed 130.
This story is developing.