ONTARIO (CBSLA.com) — Hundreds of passengers were evacuated on Wednesday after an item located in a carry-on bag raised concern at a screening checkpoint at Ontario International Airport.

Shortly before 5:30 a.m., Transportation Security Administration agents located an item that resembled a hand grenade located within a carry-on bag, according to airport police.

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Officers responded to Terminal 4 and then notified the Ontario Fire Department and bomb squad.

Airport police subsequently ordered for evacuation of the terminal.

(credit: CBS)

Hundreds of passengers were seen outside Terminal 4 at Ontario International Airport after a toy hand grenade prompted an evacuation of the terminal. (credit: CBS)

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The bag was removed from the terminal to a different location for further investigation, officials explained.

Authorities determined the item appeared to be a “gag gift” replica hand grenade.

No arrests were made.

Around 6:30 a.m., evacuation orders were lifted and passengers were allowed back inside of the terminal.

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No planes or flights were affected by the incident.