Parents have reportedly stormed the gates of a college in central Ghana after the mysterious deaths of four students.

Another 18 students at the Kumasi Academy, in Ashanti region, are receiving treatment – with the local health authority appealing to the World Health Organization (WHO) for help containing the outbreak.

The BBC’s Muhammad Fahd Adam in the capital, Accra, says it was chaos at the gates on Tuesday as parents desperately tried to remove their children from the school.

However, the school is due to remain open until Friday, Dr Emmanuel, the Kumasi regional health director, said.

This is so the students and teachers can be screened before being sent home.