A worldwide campaign to find the 276 girls kidnapped from their school in Nigeria last month is intensifying.
First Lady Michelle Obama shared a photo on Twitter of herself holding up a sign that read "# Bring Back Our Girls."
Former Secretary of State Hillary Clinton took to Twitter earlier in the week to urge their release, ending her message with the popular hashtag.
The April 15 abduction has generated outrage around the globe and calls for Nigeria to liberate the girls before they can be sold into slavery or harmed.
Clinton said the Nigerian government has been "somewhat derelict" in its responsibility to protect citizens in the northern part of the country. In an interview with ABC, Clinton called the abduction of nearly 300 girls by the Islamic extremist group Boko Haram "abominable,", "criminal" and "an act of terrorism and merits the fullest response possible."
Nigeria's police have said more than 300 girls were abducted from their secondary school in the country's remote northeast. Of that number, 276 remained in captivity and 53 managed to escape.
The terrorist group's leader, Abubakar Shekau, threatened to sell the girls during a grainy video released this week.
The Pentagon said it was sending fewer than 10 troops to Nigeria as part of the U.S. effort to help find the girls but had no plans to launch a military operation. The troops, part of a larger U.S. assistance team that will include State Department and Justice Department personnel, will help with communications, logistics and intelligence planning.