Mihango Member of County Assembly Paul Kados was arrested on Monday morning for allegedly inciting residents to protest against closing Mihango-Kayole road by the Kenya Defence Force.
The MCA was against the decision by KDF from Embakasi Garrison to close the road that cuts through the barracks.
Demonstrations began at dawn but police arrived on time and arrested the MCA and several other residents.
Residents said it was surprising to them that the road had been closed even as they enjoyed a good rapport with the military men.
"There has never been a problem between us and the soldiers. We were surprised to wake up this morning to find the road had been blocked," a resident said.
The Defence Force is yet to issue a statement on the reasons behind closure of the road.