Updated

Police in Britain have made a total of six arrests in connection with the theft of valuable Chinese artifacts from two university museums, authorities said Wednesday.

In the industrial central England town of Walsall, police arrested two men and two women suspected of being behind the April 5 theft of a valuable jade bowl and an elaborate porcelain figurine from Durham University's Oriental Museum.

In London, police arrested two men suspected of being behind the April 13 theft of 18 rare and mostly jade Chinese artifacts from Cambridge University's Fitzwilliam Museum.

It wasn't immediately clear whether the thefts were related.

The London arrests occurred Wednesday, while the central England arrests occurred Tuesday.

The arrests were announced after police appealed for help on the television program "Crimewatch" Tuesday evening. Police are still hunting for a seventh suspect in connection with the Durham theft.