Complex sentence: Areas where there are large (but not necessarily majority) Muslim populations have overflowing attendances at the mosque for the Eid al-Fitr prayer and police frequently block off roads and divert traffic to cater for the prayer and subsequent festivities.
Split into simpler sentences: Areas where there are large (but not necessarily majority) Muslim populations have overflowing attendances at the mosque for the Eid al-Fitr prayer. Police frequently block off roads and divert traffic to cater for the prayer and subsequent festivities.