Israeli officials ramped up accusations Wednesday that Iran was launching covert attack plots, saying "sticky" bombs found in a Thai house rented by Iranians were similar to devices used against Israeli diplomats in India and Georgia.

Israeli Prime Minister Benjamin Netanyahu denounced the violence, while Iran's Foreign Ministry spokesman Ramin Mehmanparast called the allegations "baseless" and said Israel was trying to damage his country's relations with Thailand and fuel "conspiracy" theories.

Thailand's government was trying to determine what three Iranian men were plotting when a cache of explosives detonated accidentally in their home in Bangkok's busy Sukhumvit Road area a day earlier. Bomb disposal teams combed the Iranians' house again Wednesday looking for more evidence, while security forces were searching for an Iranian woman they said had originally rented it.

Two of the men were detained in Bangkok on Tuesday after fleeing the destroyed house, while a third was arrested Wednesday in neighbouring Malaysia after boarding a flight from Bangkok to Kuala Lumpur overnight.

'If this aggression isn't halted, ultimately it will spread to many other countries.'—Israeli Prime Minister Benjamin Netanyahu

Israel has accused Iran of waging a campaign of state terror and has threatened military strikes on Iranian nuclear facilities. Iran has blamed the Jewish state for the recent killings of Iranian atomic scientists and has denied responsibility for all three plots this week.

On Monday in New Delhi, an explosion tore through an Israeli diplomatic vehicle, wounding the driver and a diplomat's wife, according to Indian officials. On the same day in the former Soviet republic of Georgia, authorities say attackers planted an explosive device on the car of a driver for the Israeli Embassy, but it was discovered and defused before it went off.

"If this aggression isn't halted, ultimately it will spread to many other countries," Israeli Prime Minister Benjamin Netanyahu said in Israel's parliament Wednesday.

He convened his Security Cabinet to discuss terrorisms against Israel and "Iran's involvement in repeated attempts to attack Israeli targets," his office said.

Magnetic bombs found

Israeli Ambassador to Thailand Itzhak Shoham told The Associated Press in an interview that after Tuesday's blasts, Thai police found and defused two magnetic bombs that could be stuck on vehicles.

"They are similar to the ones used in Delhi and in Tbilisi," Shoham said. "From that we can assume that there is the same network of terror."

That and the arrest of the two Iranians in Thailand "again leaves not too much room to assume who was behind it," Shoham said.

Wreckage of a taxi lies at the scene of an explosion in Bangkok. It's not immediately clear whether any of Tuesday's attacks were linked to bombings in India and Georgia. (Apichart Weerawong/Associated Press)

Late Tuesday, Israel's Channel 10 TV quoted unidentified Thai authorities as saying the captured Iranians confessed to targeting Israeli interests.

However, Thai security officials told a news conference they had little information about who the alleged attackers were or their possible targets.

National Security Council chief Wichean Potephosree said the government had not yet determined if there was any link between the events in Bangkok, New Delhi and Tbilisi.

"We haven't found any links but we are still investigating," Wichean said. "We admit there was a magnetic component, aiming at individuals, but the origin of the magnets still has to be investigated."

Iranian suspects identified

Thai police have named the Iranians in custody here as Saeid Moradi, who lost at least one leg in a self-inflicted grenade blast as he tried to flee police, and Mohammad Kharzei, who was detained Tuesday as he tried to board a flight to Malaysia.

Both men are now facing four criminal charges, including possession of explosives, attempted murder, attempted murder of a policeman and causing explosions that damaged property.

Thai officials identified the third suspect as Masoud Sedaghatzadeh, and officials in Malaysia said he was arrested there Wednesday.

Malaysia federal police spokesman Ramli Yoosuf said Sadaghatzadeh was being investigated for terrorism-related activities linked to the Bangkok blasts, but could not say whether he would be extradited to Thailand.

At least five bombs were identified in Bangkok. The first blew off the roof of the men's house, and Moradi detonated two others — one against a taxi when its driver refused to give him a ride, and another as he tried to fend off police. The taxi driver and three other Thais were wounded in the taxi blast.

When police searched the men's house, a bomb squad found and defused two explosives, each made of three or four pounds of C-4 explosives inside a pair of radios.

The type of explosives suggested they would have been used to target individuals, Wichean said. Police were tracing the materials to try to learn their origin.