Hong Kong to mark handover to China Pro-democracy activists plan to hold their annual march marking the anniversary of Britain's 1997 handover of Hong Kong to China, attendance at which they've said could break the record of 500,000 set in 2003. Meanwhile, a string of official events has been planned, beginning with an 8am flag-raising ceremony at Golden Bauhinia Square in Wan Chai and continuing through the evening with celebrations at the Hong Kong Coliseum. Sri Lanka to open suspected mass grave Following criticism that they failed to respond adequately to anti-Muslim riots last month, Sri Lankan authorities have said they would open a suspected mass grave thought to contain the bodies of nearly 100 Muslims killed by Tiger rebels. A local resident of the east coast town of Kalavanchikudy told authorities the Tigers killed and buried the Muslims in 1990, during Sri Lanka's civil war. Iraqi parliament to convene for new government Iraq's parliament is scheduled to meet to start the process of electing a new government, something US Secretary of State John Kerry has said was necessary to the country's continued existence as Islamist rebels mount an offensive there. The new government should include all sects in the country, unlike the Shiite-dominated rule of Prime Minister Nouri al-Maliki, Kerry said. The body is to choose a prime minister within 45 days. New trial for US embassy attackers in Tunis After a series of delays, 20 people previously convicted of attacking the US embassy in Tunis are due to return to court for a new trial. The upcoming hearing is the result of prosecutors' appeal last year after the attackers were given suspended two-year jail terms. The United States and Tunisia strongly criticised the leniency of that decision. Four people died when a crowd attacked the embassy and a neighbouring school in September 2012. Unmade bed expected to fetch £1.2 million Tracey Emin's 1998 work My Bed - which consists of her unmade bed surrounded by detritus such as empty liquor bottles, condoms and cigarette butts - goes on sale at Christie's with a pre-sale price estimated at £800,000 to £1.2 million (HK$10.18 million to HK$15.27 million). The piece represents a period of depression in Emin's life, when she spent much of her time in bed. Emin has said she hopes whoever buys it will donate it to a museum. Monty Python's reunion stage shows commence The legendary British comedians haven't appeared onstage together since 1980, and since then they've lost a member in Graham Chapman, who died in 1989. But the remaining Pythons plan to reassemble tonight, kicking off a series of 10 stage shows they say will be their last. Tickets for tonight's performance reportedly sold out in a record 43.5 seconds. The group plans to broadcast its final show, on July 20, to theatres worldwide.