Norfolk Police received six reports of alleged spiking by injection at three separate venues in the county during the weekend.

None of the reported incidents were in West Norfolk but following the information, officers have issued a warning for people across the county to be vigilant.

The incidents where people believe they were either spiked or injected occurred at three separate venues in Norwich and one at Great Yarmouth.

Chief Inspector Ed Brown, from Community Safety at Norfolk Police, said: “There has been an increase in people’s awareness of this type of incident in the past couple of weeks, and as a result we have seen an increase in reporting of spike related incidents. 

“We are taking these reports extremely seriously and enquiries are ongoing. We understand this will cause concern and we are working with venues, as well as security staff, across the county to help keep people safe.

“We are expecting the night-time economy to be busier than usual this weekend with people celebrating Halloween and we will have officers patrolling key night-time areas to facilitate a safe place for people to go and enjoy themselves.”

There have been a number of national reports of alleged spiking by injection across the country with police forces investigating.