A man convicted of trying to make an improvised bomb using fairy lights will undergo further psychiatric tests before sentencing.

Zahid Hussain, 29, considered targeting railway lines after he was radicalised in his bedroom by viewing hundreds of IS images of the war in Syria, jurors heard.

His trial at Birmingham Crown Court was told how he wrongly believed his non-viable "bomb" - packed with shrapnel - was capable of causing devastation.

It also heard how Hussain attempted to create a remote-control "initiator" for a device by modifying a wireless doorbell.

He was found guilty of preparing terrorist acts and was due to be sentenced at the Old Bailey on Tuesday.

But after prosecution and defence psychiatrists disagreed on the state of his mental health, Mr Justice Sweeney ordered a further evaluation to be carried out by an independent court expert.

The matter was delayed for a number of hours when Hussain, who is being held at a mental health facility, was asleep and could not be roused for his barrister to speak to him.

Hussain, who was captured on CCTV clambering into a storm drain near a high-speed railway line, was arrested in August 2015 after being seen "patrolling" the streets near his home in Naseby Road, Alum Rock.

He was arrested after reports of a man carrying a hammer and behaving suspiciously in Alum Rock.

He was taken to a police station where officers found he was in possession of handwritten recipes for explosives, a modified fairy light, and a hand-drawn map showing a drainage chamber in Alum Rock.

Officers went to his home and found an "improvised laboratory" and four allegedly viable igniters fashioned from fairy lights, the court heard.

The Old Bailey heard one of the explanations Hussain provided for trying to make the bomb was that he wanted to sell it to the Sun newspaper.

CCTV footage showed Hussain inspecting a drainage chamber near a railway embankment in Woodlands Road, Alum Rock, in the early hours of July 31 and August 2 2015.

Jurors had been told Hussain held a pronounced interest in IS and had viewed many hundreds of images relating to IS violent military conflict and images which included those of Osama bin Laden and the Boston bombers.

Hussain will be sentenced at the Old Bailey on October 2.