At least 15 people have been killed and 20 others, including foreigners, wounded after a massive blast hit a cafe in southern Morocco, Press TV reported.
The explosion hit the two-story Argana cafe in the iconic Djemma el-Fna square of Marrakesh city on Thursday, AP reported.
"There was a huge bang, and lots of smoke went up, there was debris raining down from the sky. Hundreds of people were running in panic, some towards the cafe, some away from the square. The whole front of the cafe is blown away," Andy Birnie, a tourist and eyewitness, said.
"It was lunchtime so the square was very busy. We had just walked into the square, but were shielded by some stalls."
According to Casablanca-based 2M television, six of those killed were French nationals.
Rescuers were immediately dispatched to the scene and police opened an investigation.
A hospital official was quoted by AFP as saying that seven French nationals were among the wounded, as well as two Dutch, two Swiss, two Russians and two Tunisians.
Moroccan Interior Ministry said in a statement the explosion appeared to be a "criminal act."
The blast would be Morocco's deadliest bombing in eight years if confirmed as a terrorist attack.
Forty-five people were killed and 45 others wounded after bombings hit Casablanca, Morocco's largest and chief port, in 2003.