Three pupils have left a grammar school within weeks after police were called in over a series of drug-related incidents.

The sixth formers at Invicta Grammar School agreed to leave after head teacher Julie Derrick involved Kent Police.

A boy and two girls, all in Year 13, are thought to have been approached by teachers after allegations of drug use.

After discussing their individual situations with the school, the students made the decision to end their time at the Huntsman Lane grammar.

Mrs Derrick said: "While we cannot comment on individual students, we can confirm that following a thorough investigation by the school and Kent Police, action has been taken with appropriate support, in line with our school policy.

"We have a zero tolerance approach to drugs. However, we also have a strong and supportive drugs education programme aimed at helping students understand the dangers of using drugs – from both a physical and mental health perspective.

"These students have unfortunately made a wrong decision by getting involved in drugs, having not previously had a history of bad behaviour.

"Our pastoral system ensures that all students are supported by staff and a range of other professionals, including Kent Police in this case.

"All of our students’ health, wellbeing and happiness is always our priority."

Police Sergeant Nick Hatcher of Kent Police’s Community Safety Unit said: "Kent Police was notified of an allegation relating to drug misuse at a school in Maidstone.

"The allegations were reviewed with the school and, as there was insufficient evidence to support a police prosecution, the matter was left with the school to progress."