sentences:  The Sudanese authorities blocked YouTube on April 21, 2010, following the 2010 presidential election, and also blocked YouTube's owner Google.The block was in response to a YouTube video appearing to show National Electoral Commission workers in official uniforms and a child in the Hamashkoreib region filling out voting strips and putting them into ballot boxes, with one of them expressing relief that the voting period had been extended for them to finish their work.Sudan had previously blocked YouTube temporarily in 2008 for unknown reasons.