YANGON, Nov. 25 (Xinhua) -- Two minor explosions have hit Myanmar' Yangon regional government office Friday evening, local police said.

The explosions took place at around 7 p.m. local time in the office building, which lies in Dagon township, with no casualties have so far been claimed, according to local police.

Police found two home-made M-150 chemical bombs in an emergent search into the building, which they believed caused the explosions near the Immigration Department. Investigation is underway by the authorities.

The blasts is the third of its kind in Yangon within five days following two similar ones at Thakayta township' CAPITAL supermarket and South Dagon township's Immigration Office.