On September 18, 795, The Umayyads defeated the Asturians at Las Babias.
The Asturian king, Alfsonso II, decided to gather his troops at Quirós, regroup them, and return to face the Muslims on more advantageous land.
The Umayyad general, Abdul Karim, gave him no time to organize his forces who wished to avenge his brother's death at Lutos.
Alfonso did not escape to Oviedo, instead, he remained on the other side of the river to intervene in the battle if circumstances required.
Although the terrain was not suitable for cavalry charges, the Umayyads, with numerical numbers, won the battle.