By Friday afternoon, a link to the photos said the gallery was "private and cannot be viewed."
In Washington, Muslim leaders again condemned the attacks, sent condolences to the victims and said they were concerned with reprisal attacks against Muslims in the United States.
"Those responsible for the terrorist attacks in Boston must face justice," Nihad Awad, executive director of the Council on American Islamic Relations, referred to as CAIR, told reporters at a hastily called news conference.
"The question will always come up if they are associated with our community," Awad said.
"Our community and our faith detest and deplore these actions and these individuals. We do not know the motives of these individuals but our position has been consistent. Any act of violence against innocent people is deplorable and is condemned in our faith.
"As God tells us in the Quran, if you murder one person it is as if you murdered all humanity. And if you saved one person, one innocent life, it is like you saved all of humanity," Awad said.
Imam Magid of the Islamic Society of North America said his group has set up a fund to help the bombing victims.
"These are acts of crime, not acts of religion," Benjamin Abdul-Haqq, an imam at Masjid Muhammad mosque in Washington, told the news conference.
Corey Saylor, legislative director for CAIR, said the group feared reprisals.
"We're very concerned, because in past instances some individuals have decided to go out and target further innocent people because they look different or belong to a faith that is a minority," Saylor said.
One reporter asked the leaders gathered at the news conference how they could combat radical videos that pop up on social media.
Saylor said community leaders have forcefully pushed back against what they consider radical elements of the faith.
"Unfortunately every faith has within in it heretical elements, and unfortunately young people in general will listen to those elements."
Saylor said he and other leaders would continue to push back against the heretical element "loudly and clearly."
"We will stand up, we will push back against extremists, and I'm very comfortable we'll win against them eventually."