An apparent hand grenade was found on the eastbound 210 Freeway on Sept. 23, 2014. (Credit: LAPD’s Foothill Division)

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

All lanes of the eastbound 210 Freeway were temporarily closed at Sunland Boulevard Tuesday morning while police investigated a suspicious device on the roadway’s shoulder that appeared to be a hand grenade, according to the Los Angeles Police Department.

A SigAlert was issued for the eastbound 210 Freeway, as well as the north and southbound Sunland on-ramps to the eastbound freeway, around 9:25 a.m., a tweet from the California Highway Patrol stated.

An LAPD bomb squad utilized a water canyon to safely detonate the device around 10:30 a.m., according to tweets from the department’s Foothill Division.

Police were not sure if it was a working grenade, but the device had what appeared to be a blasting cap inside, authorities said.

Motorists were told to expect major traffic delays on the freeway while the investigation wrapped up.

The SigAlert was canceled and all lanes were reopened shortly before 11 a.m., according to CHP.

UPDATE: Photo of actual grenade that #LAPD Bomb Squad is investigating eastbound 210 freeway near Sunland Blvd. pic.twitter.com/9C3fGU0iz7 — LAPD Foothill (@LAPDFoothill) September 23, 2014