Police reinforcements in Sousse after gunmen killed 28 people, mostly tourists, on a beach. Photo credit: Saber ben Hasen. Shared on Twitter by @subaruplus

At least 28 people, mostly foreign tourists, have been killed when gunmen opened fire on a beach in the resort town of Sousse, located 140 kilometers southern the capital Tunis.

Ministry of tourism : #Tunisia #SousseAttack 27 dead and 18 wounded are mostly from #germany #Belgium #UnitedKingdom #russia

— Zied Mhirsi (@zizoo) June 26, 2015

Police killed one of the gunmen, while local media reported the arrest of another suspect.

#BREAKING #Sousse #Tunisia 2nd suspect in the terrorist attack has been arrested http://t.co/LJn2eKNn09 pic.twitter.com/Ccc0hAbjKL

— Tunisia Live (@Tunisia_Live) June 26, 2015

This is the second attack targeting foreign tourists in the span of less than four months, after militants killed 22 tourists and a police officer in an attack on the Bardo Museum in the capital Tunis on 18 March.

Also Check out our coverage on Global Voices Checkdesk: Tunisia: Attack on Tourist Hotel in Resort of Sousse

No one has claimed responsibility for the attack yet. But since 2012, Okba Ibn Nafaa Brigade, a militant group linked to Al-Qaeda in the Islamic Maghreb (AQIM) staged a number of deadly attacks against police and armed forces. ISIS also claimed its responsibility for the Bardo Museum attack in March.

This is a coordinated attack, possibly bearing the flag of #ISIS, in 3 countries, 3 continents: #France, #Kuwait and #Tunisia .

— Youssef Cherif (@Faiyla) June 26, 2015