A teacher has been arrested and quizzed by police following claims he had an improper relationship with a girl pupil.
The 28-year-old, who cannot be named for legal reasons, was questioned this week by detectives in Chorley before being released on bail.
Police say the man has not been charged. But he has been ordered to report again on April 14 while investigations continue into the allegations.
It is believed the teacher is from Leyland but works at a high school in Chorley.
Officers have revealed he was arrested in connection with inciting sexual activity with a 16-year-old girl.
A spokesman for Lancashire Police confirmed the arrest and said the man had since been “released on police bail until April 14 pending further enquiries”.
Under the law, the Guardian is prohibited from identifying teachers accused of committing a criminal offence against pupils at the same school until they are charged.
Following changes to the law in October 2012, teachers are now granted anonymity when a complaint is made by, or on behalf of, any child which the individual teaches.
Nearly 500 allegations of physical and sexual abuse were made against people working in Lancashire schools over the three years up to last year.
Figures reveal that the county sacked more school staff, including teachers, than anywhere else in the country as a direct result of such claims.
The data, which came to light as a result of a Freedom of Information request, shows that during the three academic years the education authority received 494 complaints against staff – and 65 people ended up being sacked or leaving.
The figures include teachers as well as those without Qualified Teacher Status (QTS), ranging from classroom assistants to grounds staff.
As a result of the allegations, 133 members of staff were suspended. The vast majority of complaints were made against non-teaching staff.
Nationally, almost 1,000 teachers and other school staff were accused of having inappropriate relationships with pupils between 2008 and 2013. But only around one quarter of those cases led to police charges.