Trinindad and Tobago - Trinidad and Tobago implemented from Thursday even stricter security measures, ahead of the arrival of leaders from the region including US President Barack Obama to take part in the Summit of the Americas.

Measures include restrictions of the circulation of pedestrians in an area that holds the building where the summit is set to take place as well as the hotels and cruise ships that are hosting participants, delegations and journalists.

It is Obama that attracts most security measures, with the US Secret Service acting as advisors. The US president is set to be accompanied by a delegation of some 1,000 people.

According to local media reports, special protection has also been planned for UN Secretary-General Ban Ki-moon.

Forces from other Caribbean nations were acting as reinforcements, due to the scarce international experience of the Trinidadian corps in this type of activity.

Late Wednesday, six Latin Americans belonging to the Puerto Rico- based organization El Grito de los Excluidos (The Cry of the Excluded) were arrested at the airport at the capital Port of Spain.

They were allegedly trying to enter the country to take part in demonstrations. According to the authorities, the six - from Brazil, Colombia, Venezuela and Puerto Rico - might be deported. (dpa)