Hundreds of survivors and relatives of the 202 people killed in the 2002 bombings on Bali have gathered for a commemoration ceremony on the 10th anniversary of the attack.

Bali marks 10th anniversary of bombings

Security was tight with more than 2,000 police and military, including snipers, deployed to guard the memorial services on Friday after reports involving the "certain movement" of terrorists were announced two days earlier, raising the security alert to its highest level.

Australian Prime Minister Julia Gillard attended Friday's event along with John Howard, who was Australian premier at the time of the attacks. Speaking at the event, Indonesian Foreign Minister said that the memorial event aims to reiterate Indonesia and Australia’s joint effort to fight extremism.

Memorial services were also held across Australia on Friday to mark the anniversary.

In the capital, Canberra, dignitaries and family members of those killed gathered at Parliament House to mourn.