The immediate Arab reaction to the disaster shows just how unexpected this reversal was. Upon the first news of the defeat of the nobles, the reserve army of Ibn al-Mughira in Tlemcen fell into a panic. Seeing Sufrite preachers everywhere in the city, the Umayyad commander ordered his nervous Arab troops to conduct a series of round-ups in Tlemcen, several of which ended in indiscriminate massacres. This provoked a massive popular uprising in the hitherto-quiet city. The city's largely Berber population quickly drove out the Umayyad troops. The frontline of the Berber revolt now leaped to the middle Maghreb (Algeria).