Those suspended include all police chiefs in Garissa County, its regional administrator and its criminal investigations officer.
The U.S. aircraft carrier Theodore Roosevelt is just one of many warships converging on the world's newest flashpoint.
Al-Shabab didn't immediately take responsibility, but the attack bore some of the group's trademarks.
The casualties included two Kenyans and seven Somalis, a police official told Reuters.
In a new video, ISIS showed two groups of Christians being executed.
The Islamist militant group claims it killed five of the African Union troops Sunday, while destroying two vehicles.
Abdirahman Sheik Mohamud traveled to Syria to join a militant group, and is accused of plotting a terrorist attack on American soil.
Many Africans were using cell phones to make payments long before it was cool in Europe and North America.
Some 80 percent of Somalis living in urban areas are currently unemployed and there are few legal options for them to make money.
The news came one day after Australians deployed more than 300 military members to help train the Iraqi army to combat the growing threat there posed by ISIS.
At least two militants were also killed during the attack, according to a police officer.
Kenya's deputy president says the country would change "the way America changed after 9/11," following an attack that killed 148 people.
Pressed by the African Union's forces, the Somali militants may hit the countries supplying troops against them.
If airports and seaports are shuttered, the country's humanitarian crisis could escalate, relief workers say.
Civilians are caught in the middle as Kenya's government tries to cut off a Somali terrorist group's finances.
Kenya needs more help from its U.S. and European allies with intelligence and security measures to help prevent further massacres by Somali militants, Foreign Minister Amina Mohamed told Reuters on Tuesday.
Hundreds of Kenyan students marched Tuesday to honor those killed last week in the attack at Garissa University College in northeast Kenya.
The Kenyan air force has destroyed two al Shabaab camps in Somalia, it said on Monday, in the first major military response since the Islamist group massacred students at a Kenyan university last week.
The ongoing decline in tourism has hurt Kenya in recent years.
The latest airstrikes follow last week's attack on Garissa University by al-Shabab militants that killed nearly 150 students.
After a California man is killed in the war-torn Middle Eastern country, advocacy organizations urge Washington to act.
Kenyan churches hired armed guards to protect their Easter congregations as it was revealed the son of a Kenyan government official was one of the masked gunmen who killed nearly 150.