JERUSALEM?Two suicide bombers detonated nail studded explosives in a downtown Jerusalem pedestrian mall crowded with young weekend revelers Saturday. The blasts killed the assailants and 10 bystanders and wounded 150 people.

Minutes after the back-to back suicide bombings, another bomb went off in a car parked nearby, sending panicked, screaming pedestrians running in all directions.

Eyewitness Eli Shetreet, said he saw bodies being hurled in the air. “A lot of people were crying, falling, and there was the smell of burning hair,” said Shetreet, 19.

The attacks?coming after a week in which seven Israelis were killed in other incidents?increased pressure on the Palestinian Authority to take decisive action against militants groups waging a terror campaign against Israel and caused Israeli Prime Minister Ariel Sharon to cut short a U.S. visit, an aide said.