Colombo, Sri Lanka (CNN) Violence erupted in a Sri Lankan town bombed on Easter Sunday after a largely Catholic mob attacked Muslim-owned shops and a vehicle -- prompting church authorities to call for calm and no further hostilities against Muslims in the area.

A minor riot broke out Sunday in Porutota village near Negombo after a dispute between a Muslim tuk tuk driver and a group of Catholics, who wanted to inspect the vehicle, an army intelligence source told CNN. The source requested anonymity as they were not authorized to speak to media about the case.

The argument over the tuk tuk descended into violence and dozens of rioters rampaged through the streets that evening, the source said. The vehicle was set alight and two Muslim-owned shops also attacked, they added.

Sri Lanka Police spokesman Ruwan Gunasekara told a press conference on Monday that two drunk groups were responsible for the riot.

The ensuing violence led to extra police forces being deployed to the coastal village and a curfew being enforced on Sunday "to control the situation," Gunasekara added.

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