Brazil will deploy 15,000 security forces for the UN Conference on Sustainable Development (Rio+20) to be held here in June, Defense Minister Celso Amorim said on Monday.

At a press conference in Rio, the minister praised the security work, saying "an extensive plan has been made, and there will be a large number of personnel and equipment to ensure that the conference runs smoothly."

According to the plan, the Army and local police forces will patrol the streets, the Air Force and the Navy will patrol airspace and sea, and the Federal Police will be oversee foreign delegates' personal security.

The Army will also be in charge of the security of the People's Summit, a parallel conference to be held in another neighborhood and is expected to gather over 20,000 citizens.

According to General Adriano Pereira Junior, east region military commander and the Rio+20 security coordinator, the Army will not occupy the shantytowns during the conference in order to maintain a minimum interference in the city's daily life.

Rio's 550 traffic cameras will be used to monitor the security situation, and three helicopters equipped with cameras will be the Army's eyes above the streets, providing support to the convoys of over 100 heads of state expected in the conference.

Pereira also denied recent rumors that Rio de Janeiro's International Airport would be closed during the summit, saying there will only be restrictions against flying over the conference areas.

He also believed the threat of terrorism during the conference was low, but assured there would be police and counter-terrorism forces deployed.

In addition, about 20 million Brazilian reais (10 million U.S. dollars) have been invested to prevent possible cyber attacks.

VietNamNet/Xinhuanet