Heavy smoke is seen after an explosion in Linchuan district of Fuzhou city in East China's Jiangxi province May 26.

Explosions hit a government building and the building for the procuratorate in Linchuan District, Fuzhou, Jiangxi Province this morning, according to Jiangxi Traffic Radio.

The traffic police have imposed traffic control on roads near the explosion sites. The 300-meter-long roads near the district government building have been closed.

Sources from the Fuzhou Police Station said four were seriously injured in the explosions, but no one was killed.