Sri Lanka, Sept. 24 -- British police said on Wednesday a man had been arrested as part of an investigation into a ransomware attack against Collins Aerospace, owned by RTX , which knocked check-in systems at airports offline and caused widespread travel disruption across Europe.

The National Crime Agency said in a statement that the man, in his 40s, was arrested on Tuesday on suspicion of offences under the Computer Misuse Act and had since been released on conditional bail.

"Although this arrest is a positive step, the investigation into this incident is in its early stages and remains ongoing," NCA Deputy Director Paul Foster said.

It remained unclear which criminal group was behind last week's hack. An NCA spokesperson declined to ...