British tourists were reportedly involved in a violent brawl with street thieves in Ibiza sparked by a robbery which left a dad and his two sons injured. A British dad aged 52 and his twin sons aged 25 suffered stab wounds having being attacked with a knife and broken bottles in the early hours of Wednesday. The injuries were not thought to be life-threatening but all required medical treatment. Thieves cornered them in a street in the popular resort of San Antonio and stole a gold ring and chain, police said. It is understood at least one of them was stabbed in the neck and another was hit in the head and on his back with the broken bottles. Two Senegalese nationals, aged 37 and 42, were later arrested on suspicion of robbery with violence, intimidation and stabbing with a knife. The attack happened in the early hours of this morning, at about 2am, near the Hotel Orvay in Formentera street and was witnessed by several other shocked tourists.