US Secretary of State Rex Tillerson is set to make his first visit to London and meet UK Foreign Minister Boris Johnson amid an investigation into US intelligence leaks about the recent terrorist attack in Manchester.

He will be signing a condolence book for the victims of the attack and will be looking to “reaffirm America’s Special Relationship between" the US and UK and "our solidarity in defeating terrorism”.

UK police and intelligence officials have expressed concerns that US intelligence officials have been leaking details to American media outlets that could compromise the police investigation.

Home Secretary Amber Rudd called the leaks “irritating” but said that US officials had said it would not happen again.

However, pictures from the scene were published by US media and they cited US intelligence officials as the source.

Muslim man comforts elderly Jewish woman in symbol of Manchester unity Show all 4 1 /4 Muslim man comforts elderly Jewish woman in symbol of Manchester unity Muslim man comforts elderly Jewish woman in symbol of Manchester unity A Jewish woman named Renee Rachel Black and a Muslim man named Sadiq Patel react next to floral tributes in Albert Square REUTERS Muslim man comforts elderly Jewish woman in symbol of Manchester unity A Jewish woman named Renee Rachel Black and a Muslim man named Sadiq Patel react next to floral tributes in Albert Square in Manchester, Britain May 24, 2017. REUTERS/Darren Staples - RTX37DOD REUTERS Muslim man comforts elderly Jewish woman in symbol of Manchester unity A Muslim man named Sadiq Patel comforts a Jewish woman named Renee Rachel Black next to floral tributes in Albert Square in Manchester, Britain May 24, 2017. REUTERS/Darren Staples - RTX37F09 REUTERS Muslim man comforts elderly Jewish woman in symbol of Manchester unity A Muslim man named Sadiq Patel and a Jewish woman named Renee Rachel Black walk by floral tributes in Albert Square in Manchester, Britain May 24, 2017. REUTERS/Darren Staples - RTX37DOG REUTERS

Prime Minister Theresa May also confirmed she would be taking up the issue with Donald Trump while the two are in Brussels for the North Atlantic Treaty Organisation (Nato) meeting.

“I will make clear to President Trump that intelligence that is shared between our law enforcement agencies must remain secure.”

It is likely that Mr Tillerson and Mr Johnson will discuss the issue as well.

Mr Trump has asked the Department of Justice to launch an investigation into the leaks, but would not confirm that they did indeed come from US officials.

He also pledged that “if appropriate, the culprit should be prosecuted to the fullest extent of the law.”