Thieves have broken into the building that houses Interpol and an elite South African police unit in the South African capital, Pretoria, for the second time in three weeks, a spokesman said Thursday.

Two to three people stole laptops from the investigations unit known as the Hawks, presumably over the weekend, police spokesman Solomon Makgale said.

"This time around it's not Interpol, it's the Hawks," he told AFP.

"We suspect that the people that have taken these laptops, they're more interested in the laptops than the information contained there," he added.

In July, criminals made off with computers and other equipment from the International Police office in the same building.

Suspects gained entry with access cards and codes, raising concern over security measures at the building, which also hosts nonpolice entities. Local daily The Times quoted a security source as saying this was the fifth break-in in three weeks at the building.