Bombers have targeted
staff at Israeli embassies in India and Georgia, officials say, with
Israel accusing Iran of masterminding the attacks.
Witnesses said a motorcyclist placed a device on an embassy
car in Delhi, causing a blast that hurt four people - one seriously. A
bomb underneath a diplomat's car in Tbilisi was defused.
Israeli leader Benjamin Netanyahu said Iran was behind both incidents.
But Iranian officials denied the claims as "sheer lies".
'Terror exporter'
One of the victims of the Delhi bombing, the wife of a defence ministry
official, was in a "critical but stable" condition, according to AFP
news agency. It quoted a doctor as saying she had undergone spinal
surgery.
Mr Netanyahu told a meeting of his Likud party MPs that there had been "two attempts of terrorism against innocent civilians".
"Iran is behind these attacks and it is the largest terror exporter in the world," he said.
He also blamed Iran for recent plots to attack Israeli targets in Thailand and Azerbaijan that were prevented.
And he suggested that the militant Islamist Hezbollah movement was also involved.
Israel's foreign ministry said the country had the ability to track down those who carried out the attacks.
But Iran's state news agency Irna quoted the country's ambassador in India as denying involvement.
"Any terrorist attack is condemned and we strongly reject the
untrue comments by an Israeli official," said Mehdi Nabizadeh in
comments translated by Reuters news agency.
International condemnation
"These accusations are untrue and sheer lies, like previous times."
In a statement, India's Foreign Minister SM Krishna pledged a full
investigation, adding: "The culprits will be brought to justice at the
earliest.
AFP quoted US Secretary of State Hillary Clinton as condemning the
attacks, adding the US "stands ready to assist with any investigations
of these cowardly actions". UK Foreign Secretary William Hague said he
was "shocked and appalled" by the bombings.
The BBC's Rupert Wingfield-Hayes, in Jerusalem, says security at
Israeli embassies has been tightened in recent months following warnings
of potential attacks, after Iran accused Israel of a series of attacks
on its nuclear scientists.
BBC security correspondent Gordon Corera said one of them,
Mostafa Ahmadi-Roshan, died last month when motorcyclists placed a
"sticky bomb" on his car - a technique similar to that used in previous
attacks attributed to the work of Israel's Mossad.
Similarities seen in the Delhi blast could be an indication of the
aggressors sending a message that attacks in Tehran will be repaid in
kind, he added.
After the explosion in Delhi, Indian TV showed pictures of a burning car near the embassy.
Bomb squad
The area around the vehicle was later cordoned off and forensic experts and the bomb squad were examining the burnt out remains.
The embassy is guarded by several layers of security and is in a
well-defended area of central Delhi, close to Prime Minister Manmohan
Singh's official residence.
David Goldfarb, the spokesman for Israel's Delhi embassy,
said the diplomat's car was close to the building on Aurangzeb Road when
the explosion went off.
He said they had no details as to who was behind the attack.
Officials in Georgia said an explosive device was attached to the bottom
of a diplomat's car in the capital, Tbilisi, but was found and defused
before it detonated.