 Following the abduction by Hamas militants of Gilad Shalit on 25 June 2006 in a cross-border raid via a tunnel out of Gaza, Israel detained nearly a quarter of PLC members and ministers on the West Bank during August 2006 and intensified the boycott of Gaza and took other punitive measures.Calls for the implementation of the Cairo Declaration, including the formation of a unity government and the cessation of violence between Fatah and Hamas were made in the Fatah–Hamas Mecca Agreement of 8 February 2007.The Hamas government was replaced on 17 March 2007 by a national unity government headed by Haniya comprising Hamas and Fatah ministers.