article_snippet.sent: Al-Shabaab's gunmen had first stormed a Christian prayer service, where Al-Shabaab gunmen killed some and took others hostage.
article_snippet.sent: Then Al-Shabaab gunmen went across campus with Al-Shabaab gunmen, shooting non-Muslims and sparing Muslims, a witness said.
article_snippet.sent: Al-Shabaab gunmen headed for the hostels.
article_snippet.sent: There are those who were not able to leave the hostels where Al-Shabaab gunmen headed and started firing.
article_snippet.sent: At one point, Al-Shabaab gunmen pinned down a building where 360 students lived, Interior Minister Joseph Nkaissery said.
article_snippet.sent: Somali terror group Al-Shabaab, an al Qaeda affiliate, claimed responsibility for the attack.
article_snippet.sent: In a December attack at a quarry, Al-Shabaab militants separated Muslims from others and executed the non-Muslims, killing at least 36 people.
article_snippet.sent: In November, militants stopped a bus near the border and killed 28 people militants believed to be non-Muslims.
article_snippet.sent: A weakened Al-Shabaab lashes out .
highlights_snippet.sent: Al-Shabaab gunmen opened fire, and 147 people died .