From their press release:

Today, the Coalition of African American Pastors (CAAP), which includes major leaders of the black church and civil rights leaders who marched with Rev. Martin Luther King, blasted the Board of the NAACP for its endorsement of same-sex marriage. Last week CAAP launched a 100000signatures4marriage.com petition in support of traditional marriage.

"The NAACP has abandoned its historic responsibility to speak for and safeguard the civil rights movement,” said Rev. William Owens, Founder and President of CAAP. “We who marched with Rev. King did not march one inch or one mile to promote same-sex marriage.”

... "We will not stand by and let our beloved civil rights movement be hijacked without a fight."

“Our only weapons in this fight are the weapons of Rev. King: truth and love and courage. We call on all Americans to respect the legitimate civil rights of gay people to be free from violence, harassment, to vote, to hold jobs. But none of us has a moral or civil right to redefine marriage."