A low intensity blast occurred on Saturday afternoon near a security camp of Border Roads Task Force (BRTF) at Lamphel area in Imphal West district, police said.
The blast, which occurred at around 1 pm near an officers' mess, did not lead to any casualty or damages, they said.
Several proscribed outfits had called for a shutdown in the state in connection with the Republic Day celebrations on Saturday.
The blast is also the first to rock the state this year, official sources said.
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