Lebanese Army Intelligence has arrested one of the Islamic State [IS] leader Abu Bakr al-Baghdadi's wives and one of his sons on the Lebanese border as they attempted to cross from Syria, according to local media reports and security officials.

The Lebanese officials declined to reveal the name or nationality of the woman or the boy but the Lebanese outlet As-Safir reported that the military had arrested her in coordination with "foreign intelligence apparatus".

The outlet reported that Baghdadi's wife had been travelling with a fake passport while attempting to cross the border. Lebanese authorities transported her to the defence ministry headquarters for questioning.

Images of one of his wives emerged online earlier this year but it remains unknown how many wives the terror chief has.

Last month, Iraqi officials confirmed that Baghdadi was wounded by a US airstrike and his right hand man, Auf Abdulrahman Elefery, had died during the aerial assault.

Al-Baghdadi, believed to be in his early 40s, is regarded as the pre-eminent figure in the global jihadi community, leading the campaign of terror against the west. He has a $10m (£6.3m, €8m) US bounty on his head.

Under his control, IS has captured a wide area of territory straddling the Iraqi-Syrian border, creating a self-proclaimed "caliphate".

In a speech released last month, Baghdadi called for jihadists to carry out lone wolf attacks against Muslim Shi'ites and Westerners.

"Dismember their limbs; snatch them as groups and individuals," he says. "Erupt volcanoes of jihad everywhere".