IPOB militiamen ambushed at Osisioma, Tonimas junction, Aba, Abia State, early on Friday.
The gunmen, who took the troops unaware, set patrol vehicles on fire around Tonimas junction axis of Enugu-Aba-Port Harcourt Expressway.
The outlawed group declared Friday as a sit-at-home day in solidarity with their embattled leader, Nnamdi Kanu, who was arraigned at an Abuja court.
There has been no official figure of casualties of the ambush.
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