Top photos from the past week.

The trainer of the winning buffalo receives a prize of about $2,000.

 

  Ukraine's military said on Monday it could not start withdrawing heavy weapons from the front line in the east as...

  Pro-Moscow rebels said they would start to withdraw heavy weapons from the front line in eastern Ukraine on Sunday but...

  German Chancellor Angela Merkel is set to argue in Washington on Monday against arming Ukraine in its conflict against Russian-backed rebels...

 

Amateur video shows Syrian rebels loading shells into tanks as fighting continues, and a top Russian diplomat meets President Assad in...

 

 

Activists warn against complacency in fighting HIV in South Africa.  

 

Global health authorities are struggling to contain the world's worst Ebola epidemic since the disease was identified in 1976. The...