At least 25 people have been killed and 102 wounded in a series of explosions on the popular Indonesian resort island of Bali.
Tourists from the US, Britain, Australia, Japan and Korea are thought to be among the scores of people injured.
Police said two explosions ripped through beach-side seafood restaurants 100m apart in the fishing village of Jimbaran.
Minutes later another blast took place at the Matahari Square shopping centre in the popular beach resort area of Kuta.
The Department of Foreign Affairs has said there are no reports of any Irish citizens being injured in the bombings.
It is currently working to establish if any Irish people were staying in the affected areas.
The Indonesian President, Susilo Bambang Yudhoyono, immediately condemned the latest outrage and vowed to hunt down the perpetrators.
Security experts have said the attacks bear the hallmarks of Jemaah Islamiah, a network seen as the regional arm of al-Qaeda.
The group has been blamed for a series of attacks against Western targets in the world's most populous Muslim nation.
The blasts came less than two weeks before the third anniversary of the bomb attacks on two Kuta nightclubs that killed 202 people.
Three militants were subsequently sentenced to death for their parts in the Bali bombings and two others are serving life sentences for the attacks.
Bali, 960km east of Jakarta, is Indonesia's most popular destination for foreign tourists. While the number of tourists dropped sharply after the attacks three years ago, the island's key industry has since recovered.
Those concerned about family members in the area can contact 01-408 2308 or 01-408 2833.
