Following the discovery of two suitcases on one of the most well-known bridges in the UK, both of which were suspected to contain human remains, police in the UK launched a manhunt on Thursday.

Late on Wednesday, Avon and Somerset Police received a report about a man acting suspiciously on the Clifton Suspension Bridge in Bristol, southwest England, who was carrying a suitcase.

When the police arrived at the scene ten minutes later, the man had already left the luggage, and they soon discovered another suitcase.

The police statement said, "Sadly, it's believed the suitcases contain human remains," as police chief Vicks Hayward-Melen labeled it "a very disturbing incident."

She added, "Our immediate priority is to locate the man who took the suitcases to the bridge, identify the deceased, and inform their next of kin."

Read more: British army veteran arrested for murder of BBC journalist's family

One of the oldest suspension bridges still in existence in the world is the Clifton Suspension Bridge, which was created by the innovative engineer Isambard Kingdom Brunel.

The Avon Gorge Bridge, which opened in 1864, is a popular tourist destination and a representation of Bristol.