Nige Harper uploaded this photo to Twitter. He says the river Gwenfro on Caia Park is threatening to burst its banks.
It's after heavy rain in the area.
More top news
A tidal lagoon between Cardiff and Newport is being planned as part of a report published today.
A RNLI crew member has spent four weeks repairing and renovating two historic relics which are to be displayed at a new RNLI station.
GPs will have more time to spend caring for those most vulnerable with complex care needs, under a new contract.