On Friday night, local police and the Guardia Civil mounted a special operation to prevent trouble at the Sant Pere Fiestas in Esporles.
This followed an incident earlier in the week when a fight between local youths and ones from out of town resulted in three arrests. On Friday night into Saturday, there was a fiestas' party that started at 11pm.
Police were aware that threats of further violence and of seeking revenge were being made on social media platforms.