Three people have been killed and several wounded in two explosions in the Kenyan coastal city of Mombasa, including one at a beach bar in Nyali.
In the deadliest attack, a grenade was reportedly thrown in a bus that had just arrived from the capital, Nairobi, killing three people and injuring at least four others.
The other blast happened at a beach bar near the Nayali Reef Hotel, where a device was left in a plastic bag in the washroom. There are no reports of casualties there.
The Foreign Office said tourists should "exercise a heightened level of vigilance".
The al-Qaeda-linked group al-Shabab has carried out several attacks in Kenya since 2011, when Kenya sent troops into Somalia.
No-one has yet claimed responsibility for Saturday’s blasts.
Tensions have been rising in Mombasa in recent months, with authorities accusing Islamists of radicalising local youths.
