A teenager reportedly walked into a Pakistani police station Friday and shot dead a 65-year-old man from a minority sect who had been accused of blasphemy, the second murder involving the country's controversial blasphemy laws in as many weeks.

Victim Khalil Ahmad was a member of the minority Ahmadi community, a sect who say they are Muslim but whose religion is rejected by the Pakistani state.

Ahmad and three other Ahmadis had asked a shopkeeper in their village in central Pakistan earlier in the week to remove inflammatory stickers denouncing their community, said Saleem ud Din, a spokesman for the Ahmadi community.

In retaliation, the shopkeeper filed blasphemy charges against the four men on May 12. Ahmad, a father of four, was in police custody when the teenage boy walked in, asked to see him and shot him dead, Din said.