Spanish man who was arrested for starting the fire which broke out on Ibiza on Sunday night is believed to have started it through negligence while he was caring for his marijuana plantation nearby. Civil Guard sources have told the EFE news agency that the cause is thought to be either a cigarette he was smoking or a fire he had lit to cook food. The suspect had spent the past few days caring for his crop in the area where the blaze broke out. He spent his nights in a home-made shelter and used a nearby cave to dry out his plants. The Civil Guard seized marijuana plants and dried leaves at the site, amounting to almost 6 kilos of the drug. The man now faces additional charges of a public health crime. The fire which began in Cala Llonga and forced hundreds of people to be evacuated in Santa Eulàra des Riu destroyed more than 80 hectares of pines and just under 9 hectares of agricultural crops. The amount of land destroyed is however lower than the original estimate of 115 hectares. The Baleares Nature Institute, Ibanat, gives the amount as 92.3 hectares.