Police and forensics teams investigate the scene at the BTS Chong Nonsi station in central Bangkok, Thailand, this morning ( August 2).

Two explosions happened at around 8:30 am as well as three other blasts at separate locations.

Three street cleaners were injured in the Phra Ram 9 area, where one device detonated.

Police and forensics teams investigate the scene at the BTS Chong Nonsi station in central Bangkok, Thailand, this morning, where two explosions - one on the platform and one below - happened at around 8:30am. There were three other blasts at three other locations in the city at the same time. Three street cleaners were injured in the Phra Ram 9 area, where one device detonated.

Street cleaners Kisana Pongsaisee, Suntorn Rodseanglum, Sasinipha Petchthongloang were working in the Phra Ram 9 area of the Thai capital when the homemade device exploded just after 8.30am.

All of the victims were taken to the hospital. One of them is understood to have been seriously injured.

At least five explosions rocked the city during morning rush hour. There were two explosions during morning rush hour at the BTS Chong Nonsi station, one in Phra Ram 9 road and one at the government's Changwattana building.

The government's Changwattana building in northern Bangkok, Thailand, is visited every day by thousands of tourists making visa applications. A nearby government building was also hit there. A concrete bench was destroyed after the blast there.

Police closed down the area next to the transport systems while they investigated the blasts. They were also checking the King Power building in Bangkok - owners of Leicester City - and key establishment figures in Thailand.

Police said all the devices were homemade. At least one of the devices was a ping pong ball packed with ball bearings.