Kenyan police have been given orders to guard "colleges, churches, hotels, beaches and supermarkets" after receiving intelligence that several terrorist attacks were to be carried out around the city of Mombasa.
"A new era of peace and friendship has been opened," an agreement read.
A suicide bomber drove a car into Posh Hotel, the Somali capital's only venue with a disco.
The climate phenomenon is often called the Indian Niño due to its similarity with El Niño.
Al-Shabab says its fighters killed five soldiers in the clashes, a claim Nairobi denies.
Abdul Nadir Mumin defected from Al-Shabab to recruit fighters for ISIS in the failed state.
Helen Mirren, Aaron Paul and Alan Rickman star in new drone-centric film.
The UN is preparing for a "massive influx" of refugees to Djibouti and Somalia as fighting in Yemen escalates.