Terror threat is 'highly likely' as police issue warning ahead of Sheffield summer events
Police have warned the UK's terrorism threat level is severe
People planning to attend Sheffield's World Cup fan zone, Tramlines and other large events are being urged to stay vigilant - as police warn the UK's terrorism threat level is “severe”.
In April, the national terrorism threat level was increased to severe, meaning an attack is highly likely.
Whilst major events bring communities together, they can also be attractive targets.
Counter Terrorism Policing North East and South Yorkshire Police have launched a summer safety campaign ahead of a busy calendar of events across the county, encouraging people to report anything suspicious.
Superintendent Mark Jessop, Head of Protect and Prepare at Counter Terrorism Policing North East, said: "As you enjoy these events, and travel to and from the venue, you can expect to see safety messaging reminding you to look out for each other and to act on anything suspicious.
"If something doesn't feel right, trust your instincts and report it to security, staff or the police straight away. In an emergency, always call 999.
"You won't be wasting our time and your information could prove vital."
The warning comes as thousands of people prepare to attend Tramlines Festival in Hillsborough Park later this month, while football fans are also expected to gather at the Fan City site on Devonshire Green to watch the World Cup finals.
Police said officers are working closely with event organisers, businesses and security teams to help keep people safe throughout the summer.
Superintendent Charlotte Bloxham, of South Yorkshire Police, said: "We want everyone to safely enjoy what South Yorkshire has to offer this summer and officers will be on hand at events to answer your questions or listen to concerns.
"But we unfortunately can't be everywhere and that's where you can come in as our extra eyes and ears.
"Be aware of your surroundings and if you spot something that appears out of the ordinary don't think someone else will sort it.
"Remember, action counters terrorism. Report it. We'll do the rest."
The campaign also reminds people of the "Run, Hide, Tell" advice in the event of a terrorist attack and encourages anyone who notices suspicious behaviour to report it immediately rather than assuming someone else will.