Israel's defence minister Moshe Ya'alon said the Syrian crisis has "spilled over" to Lebanon because of Hezbollah's involvement in the war.
Mr Yaalon said: "The Syrian civil war has long spilled over into Lebanon as a result of Hezbollah involvement in Syria fighting.
"We see inside Lebanon, in Tripoli, Sidon and also in Beirut, from reports today of a car bomb that exploded there".
"We are not dealing with this and not intervening in it".
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A 61-year-old woman was taken to hospital with head injuries after the incident in Islington, north London.
Counting will begin on Saturday morning, with the result expected later in the day.
There have been a number of incidents involving heavy goods vehicles getting stuck and causing disruption in recent months.