wo Pakistani students arrested over unproven terror allegations in England earlier this year have returned to Pakistan, a British official said.
The duo have landed in Lahore after agreeing to leave Britain voluntarily, the official said.
Rizwan Sharif and Umar Farooq were among 12 people held by police after raids in north-west England in April, but the pair were never charged.
The Home Office tried to deport them, saying they remained a security threat.
The case has strained relations between Britain and Pakistan and also caused embarrassment to Britain.
On arrival in Lahore, the students told journalists that they were investigated by hundreds of policemen during their detention but the British authorities failed to prove any charges against him.