Prosecutors say a British man arrested with several knives near Parliament last month is also accused of being an al-Qaida bomb-maker in Afghanistan.

Khalid Mohamed Omar Ali appeared in court Wednesday to face one charge of preparing terrorist acts and two of making or having explosives.

The 27-year-old Londoner was arrested at gunpoint in the street near Parliament on April 27 as part of what police called an ongoing counterterrorism operation. They said he had been under surveillance.

Prosecutors say Ali's fingerprints were allegedly found on parts for improvised explosive devices recovered by the U.S. in Afghanistan in 2012.

Ali refused to enter pleas during the hearing at Westminster Magistrates' Court.

Not-guilty pleas were entered on his behalf and he was ordered detained until his next court appearance May 19.