A controlled explosion has taken place after a suspected war grenade was discovered.
The emergency services were called to a field off Radlett Lane in Shenley this morning (Wednesday).
Police attended and cordoned off the road before waiting for the Explosive Ordnance Disposal team to arrive.
Residents later reported hearing a loud bang and Hertfordshire Constabulary confirmed the area was made safe by the early afternoon.
A police spokesperson said: "Police were called at just after 10am today (July 21) to report the discovery of a suspected World War 2 grenade off Radlett Lane, Shenley.
"The area was cordoned off by officers until the EOD (Explosive Ordnance Disposal) team arrived.
"They safely disposed of the device around 1.30pm."
The police spokesperson added the device that was blown up is believed to be a Second World War grenade.
Radlett Lane has now reopened in both directions.
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