Police work at a blast site in Bangkok, Thailand, Feb. 14, 2012. Explosions on Tuesday afternoon injured five people, including one Iranian suspect, on Sukhumvit road in Bangkok, local TNN 24 news channel reported. (Xinhua/Rachen Sageamsak)

Thai Prime Minister Yingluck Shinawatra Tuesday urged the public not to panic over three explosions in Bangkok related to three Iranians.

According to the latest report from Nationa News Agency (NNA), one suspect has been arrested at the international Suvarnabhumi Airport.

On Tuesday afternoon, three consecutive explosions occurred in downtown Bangkok's Sukhumvit road. The explosions injured four Thais and one Iranian suspect.

Yingluck said police and intelligence agencies are investigating the case.

"I would like to ask the people not to panic. The authorities have now arrested an attacker," Bangkok Post online quoted Yingluck as saying.

The Thai Foreign Ministry has sought cooperation from Iran Embassy to check backgrounds of the Iranian suspect(s), said Deputy PM's Secretary-General Thitima Chaisaeng said, according to The Nation online.

At about 2 p.m. local time, a first bomb went off in a rented house in Soi Pridiphanomyong 31-33 on Sukhumvit 71 road. Three foreigners were reportedly living in the house, one of them confirmed as a Iranian national. The rest, of unidentified nationality, left the house un-injured, according to Thai media.

After the explosion, the Iranian housed renter called a taxi at Soi Pridi Panomyong 33.

The taxi driver did not pull over to pick him up. The man was angry and threw an explosive device at the vehicle. Taxi driver Sanchai Boonsungnoen and passenger Apichart Khamlue were injured. Two Thai passer-bys also wounded in the explosion, according to Thai News Agency. The Iranian man then walked to Kasem Pitthaya School in Soi Sukhumvit 71 and saw the police, inspecting the taxi hit by the bomb. He then accidentally dropped an explosive device on the ground, causing it to go off, wounding him severely -- cutting off his two legs. Three sedans were damaged because of the explosion.