The M7 is closed northbound between Junction 25 Nenagh Centre and Junction 23 Moneygall due to a multi-vehicle crash.
The incident happened between 7:30 and 8;00 AM - it's being investigated by Nenagh Garda Station.
Gardaí say any injuries are non-life threatening.
The road is expected to remain closed until early afternoon.
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#TIPPERARY #OFFALY Gardaí report icy conditions both ways along the M7 between J25 Nenagh Centre and J23 Moneygall. https://t.co/ipFDM8svNY
— AA Roadwatch (@aaroadwatch) January 31, 2018