The three bomb explosions on April 24 killed 23 people, including three foreigners -- a Russian, a Swiss, and a German. Some 62 people were injured, many seriously.
U.S. President George W. Bush denounced the attacks as a "heinous act," while Russian President Vladimir Putin called them "barbaric."
Israeli Prime Minister-designate Ehud Olmert telephoned Egyptian President Hosni Mubarak to express his condolences. Palestinian leader Mahmud Abbas branded the attacks as criminal and cowardly.
The Hamas-led Palestinian government "strongly condemns this criminal act," its spokesman, Razi Hamad, said. This is believed to be the first time the Islamic militant group has condemned a terrorist attack in the region.
There was no immediate claim of responsibility, but the bombings were similar to attacks in the resort of Taba, to the north of Dahab, in October 2004 and the resort of Sharm el-Sheikh to the south in July 2005.
Egyptian authorities have not yet said who they think was behind the Dahab explosions. But authorities blamed the previous attacks, which altogether killed around 100 people, on a little-known Sinai-based group. In all cases, three bombs went off within minutes of each other on the evening of a holiday. In some cases the bombers used trucks, in others they left explosives in suitcases.
The group was reportedly founded by Iyad Said Saleh, a man of Palestinian origin who grew up in the north Sinai town of El-Arish. Egyptian officials say the group has no known links with foreign organizations such as Osama bin Laden's Al-Qaeda.
(compiled from agency reports)