Seven men have been arrested by Maldives police after a bomb wounded 12 foreign tourists, government officials have said.
Mohamed Shareef said on Sunday that police were also pursuing other suspects.
The nail-packed, home-made bomb exploded outside the crowded Sultan Park in the capital Male on Saturday.
Shareef said: "Police have arrested seven men based on forensic evidence and now they have been named suspects.
"Some of them were trying to flee the country and were apprehended at the airport."
Burn wounds
Shareef said the seven men would be prosecuted over the attack.
He said that the police would not yet release their names because authorities were still searching for other suspects.
"I spoke to the assistant police commissioner and he said they are very, very close to cracking this case," Shareef said.
The injured included two Britons, eight Chinese nationals and two Japanese, all of whom suffered burn injuries, he said.
The British couple sustained burns of more than 40 per cent of their bodies.
Violence fears
The couple remain in hospital while the others have all been discharged and have left the country, Shareef said.
He said the bomb appeared to have been assembled by "a group of amateurs" and said investigators will seek help from Interpol, the US and India in investigating the blast.
Saturday's attack was the first-ever reported on the Indian Ocean archipelago and popular holiday destination.
Observers have expressed concern about the potential for violence in the overwhelmingly Muslim country due to political unrest.