Iraq's Popular Mobilisation Forces (PMF), an umbrella grouping of militia groups, had said earlier on Saturday said that an air strike targeting its fighters had hit a convoy of medics.
However, the PMF later issued another statement saying that no medical convoys were targeted in Taj, the Reuters news agency reported.
Iraqi state television had earlier said that US air strikes had taken place against PMU camps near the capital, about 24 hours after the US assassinated top Iranian general Qassem Soleimani.
Before the army's denial, an Iraqi military source had told Reuters that the strikes had killed six fighters at a base in Taj.
A US military spokesman also said that the US-led coalition fighting in the region had not undertaken any air strikes.
Washington responded two days later with air strikes on PMU bases that killed 25 fighters.
Protesters eventually left the areas surrounding the embassy, but late on Thursday, a US drone strike killed Soleimani - Iran's most powerful general. »