President Obama has arrived in Britain on the second leg of his European tour. Earlier in Ireland, he praised the relationship between the Irish and American people, saying that never had a nation so small

inspire

d so much in another. The president visited a village where his great-great-great-grandfather once lived. Peter Hunt followed the day's events.

A homecoming welcome in Dublin tonight for a black American president embracing his distant Irish ancestry. Barack Obama with his wife Michelle by his side told the crowd "We feel very much at home." Earlier in the day, the couple travelled to the tiny County Offaly village of Moneygall, where they drank Guinness. It was from here that Obama's great-great-great-grandfather left behind the

famine

in 1850 and immigrated to America. Mr Obama has been forced, because of the ash cloud, to fly to London tonight for the next part of his European tour.

Police in Colombia say they've seized a massive

haul

of cocaine. Sniffer dogs found more than 12 tonnes of the drug hidden in a shipment of brown sugar destined for Mexico. It's believed to belong to one of Colombia's most powerful drug gangs, the Rastrojos.

And scientists say they've found a new animal species - a leech with razor-sharp teeth in the nose of a girl in a remote region of Peru. The leech is described in a top 10 list of new species. It also includes a spider that can span rivers with its web, a batfish that hops and a forest mushroom that glows day and night.