Update 1.45pm: Aena says that as of a quarter of an hour ago, the runway has been opened and is operating again. It will take a little while for things to get back on schedule, but the airport is now back to normal.
Original post 11.30am: TFS is temporarily closed this lunchtime after the tyres burst on a plane just about to take off at the airport. The Norwegian airline plane cannot be towed, and so has blocked the runway. AENA says that it hopes things will be back to normal by this evening, and that travellers should check their flights and to expect some delays. Incoming flights are being diverted, some to TFN, others to Gran Canaria and Fuerteventura.