Bosses at U.S. network Lifetime have cancelled longrunning crime series America's Most Wanted after 25 years.

John Walsh has presented the show, which aims to aid law enforcement agencies by locating some of America's most dangerous fugitives, since 1988.

The show was scrapped by Fox in 2011 and picked up by Lifetime - but after 40 episodes at its new home, chiefs have decided to axe the series.

America's Most Wanted has helped capture more than 1,100 fugitives in the U.S. and 30 countries.

Walsh came up the concept after his six-year-old son, Adam, was abducted and murdered in 1981.