VIDEO - A lone gunman, chanting Islam's rallying cry of God is Greatest, fired at a group of foreign tourists in the Jordanian capital Amman on Monday, killing a British man and wounding six, an official and a witness said. Jordanian government spokesman Nasser Joudeh denied earlier reports that the attack was carried out by two men, one of them an Iraqi. He said the gunman, a Jordanian, had been arrested and was being questioned. Joudeh told Reuters the wounded were three Britons, a Dutch national, a New Zealander and their Jordanian tour guide.Police cordoned off the site of the attack near the Roman amphitheatre in the downtown area of the capital. "I was walking when I saw someone pull out a pistol from his pocket and start shouting Allahu Akbar (God is Greatest) and fire repeatedly," Mohammad Jawad Ali, an Iraqi who witnessed the shooting, told Reuters. "Then I saw one tourist who appeared to be dead and three who were injured. They were in a group of seven. A woman told me they were tourists from New Zealand and England," Ali said. No group immediately claimed responsibility for the attack. Initial reports estimate that a British national was killed in the attack. However, a British official commented that this has not been confirmed. "We are actively seeking information from the Jordanian authorities about the attacks," he told Reuters. "We cannot confirm or deny anything until we get more information." Estimates are that five other foreigners were injured in the attack. The downtown area of Amman is a very popular tourist attraction. Al-Qaeda in Iraq launched suicide bombings against hotels in Amman last year, killing scores of people.