GAZA STRIP - For the second time in less than a month, masked gunmen destroyed the facilities at one of the United Nation's summer camps in the Gaza Strip.

 "At 0230 on Monday 28 June 2010, a group of approximately 25 armed and masked men attacked and set fire to and destroyed an UNRWA Summer Games recreation facility on the beach in Nuseirat, Gaza," UNRWA stated in a press release.

"The attack is the second of its kind in a month, following on from an attack on Sunday 23 May 2010 when a group of approximately 30 armed and masked men attacked and set fire to an UNRWA Summer Games recreation facility then under construction on the beach in Gaza city," the release stated.

John Ging, UNRWA's director of operations in Gaza called the attack "cowardly and despicable," saying "the overwhelming success of UNRWA' Summer Games has once again obviously frustrated those who are intolerant of children's happiness."

Ging called Monday morning's attack "another example of the growing levels of extremism in Gaza" and said UNRWA would rebuild the camp and continue the program.

This summer marks UNRWA's fourth year conducting Gaza's largest summer camp program, which includes activities such as swimming, arts and crafts, sports, theatre and drama.

More than 250,000 children attend camp in one of 1,200 locations across the coastal enclave between June 12 and August 5.