Three explosions hit east Belgium, injuring 1
China steps up airport security following Brussels attack
IS claims responsibility for suicide bombing in Iraq
N. Korea accuses S. Korea of creating inter-Korean confrontation
Shenzhen raises property purchase threshold
Polluters feel pressure of China's new environmental law
NW China legislates to protect Hoh Xil nature reserve
US Sanders holds rally in Seattle
Chinese tech set to take quantum leap
Three explosions have been reported in eastern Belgium.
Local media say the blasts took place in Liege between late Friday night and dawn on Saturday.
It's also been reported that a suspect has been taken into custody, but so far no other details have been released.
China has stepped up security measures at all airports nationwide in response to the suicide bombings in Brussels that killed 31 people.
Security staff at airports in Shanghai, Beijing and Chengdu have been seen swabbing passengers' bags outside terminals.
Chinese aviation authorities say the latest measures are intended to "inspect every passenger entering the airport."
Surveillance is also heavy for train passengers, where bag screenings and ID checks at railway station entrances have long-been mandatory.
The Islamic State group has claimed responsibility for a suicide bombing at a football match in Baghdad, capital of Iraq.
The bombing took place on Friday following a match in the city of Iskanderiyah, 50 kilometres from Baghdad.
The attack killed 29 spectators and wounded nearly 100 others.
The IS group posted an online statement, saying it has been waging a campaign of suicide bombings in the capital.
The bombing came as an Iraqi military spokesman announced that Iraqi troops and Sunni tribal fighters had recaptured the town of Kubeisa in western Anbar province from IS.
North Korea has accused South Korea of "stirring up distrust, hostility and confrontation" between the two countries by marking the 6th anniversary of the sinking of the Cheonan.
South Korea said the corvette was sunk by torpedoes fired by the North, a charge repeatedly denied by Pyongyang.
South Korean President Park Geun-hye on Friday attended a ceremony marking the sinking of the warship in 2010.
She warned that North Korea was acting self-destructively with its consistent provocations and called for the North to abandon its nuclear programs.
A statement issued by North Korea says Seoul's claim is "a sinister intention to turn inter-Korean relations into those of hostility and confrontation which can never be repaired."
The southern city Shenzhen has raised its property purchase threshold.
The Shenzhen government issued a statement late Friday night, saying people without local residence permits or "hukou" have to make at least three consecutive years of social insurance payments before they can buy a home in the city.
The previous policy stated that residents without a Shenzhen "hukou" could buy homes in the city after one year of social insurance payments.
Residents without a local "hukou" can only buy one house.
The new policy also sets a differentiated mortgage loan policy for home buyers.
Chinese enterprises are encountering more severe sanctions since the revised environmental protection law took effect one year ago.
Official data shows polluters were fined nearly 120 million yuan or 18 million US dollars in December and January.
Among them, polluters in 56 cases were fined in January compared to 10 cases in the same period last year.
Under the new system, enterprises will face fines which accumulate daily until they remedy the offending practices.
Qinghai Province in the northwest has issued a regulation on the protection of Hoh Xil, a nature reserve on the Qinghai-Tibetan plateau.
The bill bans all activities detrimental to the environment of the reserve, including quarrying, soil sampling, and mining.
Construction and tourism that affect wildlife are also forbidden.
Anyone who breaks the regulation will be fined 600-thousand yuan or 92-thousand US dollars.
Hoh Xil encompasses China's largest uninhabited area, and is home to many endangered species.
The reserve is working on an application to be listed as a UNESCO world natural heritage in 2017.
Democratic US presidential candidate Bernie Sanders says polls show he is the stronger Democratic candidate for the presidency.
Sanders said he has more chance of preventing the eventual Republican candidate from winning November's election, including Donald Trump.
He also reiterated his request that Clinton release the transcripts from her highly lucrative speaking engagements on Wall Street.
Chinese experts say the country is set to lead the development of quantum science globally.
Experts from Zhangjiang High-Tech Park in Shanghai say the world's first quantum satellite and a 1,000-kilometer quantum communication line connecting Shanghai and Beijing will start operating later this year.
Quantum technology features top-level encryption security compared with traditional communications.
Experts say quantum communications will be used in the financial sector, where the highest level of security is required.