The management of the 2012 Olympics have received extra cash to improve visible security at venues.
The London Organising Committee (LOCOG) will receive a further £280 million to "meet venue security costs", the Home Office said in a statement.
The money will be spent on security fencing
, and perimeter and bag searches at venues across the UK.
However, the overall £600 million security budget for the Games could be cut.
The Home Office said that while the full amount will remain open, the government is confident it can trim the budget to around £475 million and still deliver a full security programme. The £280 million for venue security is not included in this figure.
It has also been announced that security fencing
will be used to protect a transport hub that will be built for the Games.
The depot will house 400 buses and 1,200 drivers, with athletes being ferried between venues. The security fencing
, the Evening Standard reported, will be 2.7m high, because of the possibility of the numbers of athletes gathering at the site.