Two gunmen opened fire in a parking lot near the Curtis Culwell Center in Texas on Sunday evening, wounding a security guard in the leg.
Police responded within seconds and killed both shooters.
The identities of the gunmen have not been revealed, but ISIL militants reportedly praised the attack and took responsibility for it online.
According to media reports, a radical account entitled “AbuHussainAlBritani” posted remarks before and after the attack. The first message threatened to hit US streets with “death and slaughter.” In another tweet, the account referred to the two suspects who opened fire at the exhibition center in Texas as "brothers."
This Twitter account, as well as the pro-extremist account “Sharia is Light” that posted a comment with the hashtag #texasattack minutes before the Texas shooting on Sunday, have been suspended.
Nearly 200 people were present at the event when the attackers opened fire. They were evacuated. Police began searching for explosives that could have been placed near the scene.
In early January, radicals attacked the office of French satire magazine Charlie Hebdo that printed Prophet Muhammad cartoons. The massacre took 17 lives.