New Delhi, Jan. 3: Flight operations at airports in Delhi were disrupted by fog on Saturday morning.

Nearly 20 flights were delayed up to up to three hours and 15 others were cancelled at the Indira Gandhi Airport.

The General Visibility dipped below normal resulting in the cancellation of early morning flights to Chennai, Mumbai, Hyderabad, Jaipur and Kochi.

Visibility dropped to below 50 metres, while runaway visibility dipped to around 100 metres.

The minimum visibility requirement for aircrafts to take off is 150 metres.

Washington, Jan 3: A new research has suggested that the mammoths went extinct not because of climate change or overhunting by early humans, but a "perfect storm" of conditions.

At the height of their numbers, the elephant-like beasts roamed the northern hemisphere from France to Canada, north above the Arctic circle and south into China.

But after thriving for millions of years, they suddenly disappeared around 12,000 years ago.

Scientists have long argued that climate change, an asteroid impact, or even the rise of the humans, armed with spears, may have played an important factor in their extinction.

Manila  - One communist rebel was killed Saturday in a clash with government troops in an eastern Philippine town, a military report said.

The fighting erupted early Saturday when patrolling troops encountered heavily armed communist guerrillas in Candelaria town in Quezon province, 120 kilometres south-east of Manila.

Government troops also recovered one assault rifle from the slain guerrilla, who has yet to be identified.

Washington, Jan 3: Hollywood actor Hugh Jackman has reportedly pulled himself out of the discussions to star in 3-D rock musical `Cleo', which is based on Cleopatra's life.

According to the sources, the actor dropped out of the discussions to star in Steven Soderbergh's musical "Cleo" following scheduling conflicts.

Catherine Zeta-Jones would play Cleopatra. Apparently, Soderbergh wanted the Aussie actor to play her lover, the Roman general Marc Antony, reports Variety.

Washington,

London, Jan 3 : After a dysfunctional family Christmas most UK couples are heading towards divorce, and the most likely date to witness the highest number of petitions filed is January 20, according to lawyers.

According to the experts, more people file for divorce in January than at any other time of the year because they decide to take action after a `not-so-good family Christmas.

"January is the month when you tend to see an increase in the number of couples deciding to separate," the Telegraph quoted Tanya Roberts, partner at law firm Charles Russell as saying.

"Having gritted their teeth over Christmas and the New Year, and finally got the children settled into school, they call in a divorce lawyer.