Charlie Hebdo massacre: Killing as France mourns Paris victims

A policewoman has died after being shot in Paris as French police continue to search for the men who killed 12 people at the office of a satirical magazine.

A second person was seriously injured in the attack in the southern suburb of Montrouge, after which the gunman fled.

It came as people across France prepared to stop for a minute's silence to remember those killed on Wednesday.

Christian Fraser reports.