Peugeot 308 hdi anti pollution fault

Hi can anyone advise please was out in my 08 Peugeot 308 hdi earlier and it went into limp and flashed up anti pollution fault and engine management light came on gave it 10 min started again was fine. Drove another mile and did the same got my breakdown cover out whom towed me home until I can get to my garage on Monday. Any help please