At least four people were injured in small explosions in Thai capital city of Bangkok on Friday, according to media reports citing Thai police, as the country is now hosting regional summits with foreign diplomats in attendance. Footage shows police officers studying sites in the central business district of the city, including the area in front ot King Power MahaNakhon building, a parking lot and a train station. The explosions happened near the centre of the city and in the northern part of Bangkok near the government complex. A total of 6 exploded bombs were recovered by police with one more unexploded device also found. The incident is being investigated.