SINGAPORE - Between October 2012 and February last year, a serial paedophile committed 27 sexual offences on five boys aged between 7 and 11.

Lok Kwok, 59, befriended his victims, who were all students at the primary school near his home in Bukit Batok, and lured them into his flat with promises of computer games and television. There, the logistics officer would offer them gifts including toys and money to get them to hug and kiss him, touch his private parts and perform oral sex on him - even taking photographs and video recordings of the acts to keep for his "own sexual enjoyment".

On Monday, prosecutors called for Lok, who earlier pleaded guilty to seven charges under the Children and Young Persons Act and one charge under the Penal Code, to be jailed for at least 12 years.

He will be sentenced on Nov 3. The maximum penalty for sexually penetrating someone aged under 14 years is a jail term of 20 years, fine and caning. For each count of committing an indecent act with a child, Lok faces up to five years in jail and a fine of up to $10,000.