An explosion occurred in a phone cabinet at the entrance of a shopping area in the Saudi capital on Wednesday, but no one was hurt, reported Emirati News Agency (WAM).
The agency said that police were quickly on the scene outside al-Youmarshaih mall.
Part of a wall collapsed from the impact just outside the entrance to the mall, the agency said.
"It seemed to have been a stick of dynamite," Ibrahim Al Malek, head of the company which runs the shopping center, told AFP.
The blast comes after three explosions, which targeted Britons working in Saudi Arabia in November and December, said AFP.
Those blasts left one dead and five injured.
Saudi authorities have made several arrests, including an American, while pointing to possible criminal rather than political motives for the attacks, which come at a time of anti-western sentiment linked to the Middle East conflict, said the agency -- (Several Sources)
