Colin Shaw went over for Glasgow's second try

However, the performance at Liberty Stadium was much improved on last week's performance against Cardiff Blues.

Glasgow looked set to claim a bonus point but a last-minute interception try leaves the Warriors looking to kick-start their season in next Friday's match with Connacht at Firhill.

Glasgow's tries came from Sam Pinder and Colin Shaw with Colin Gregor kicking the Warriors other points.

Glasgow full back Bernardo Stortoni was sin-binned after 12 minutes - his second yellow card in two games.

Report from Sporting Life

Ospreys scored their first Magners League victory of the season at the Liberty Stadium today, with Glasgow fighting bravely but in vain.

Neither side had won a league match so far, so they were both desperate to clear their way from the bottom of the table.

And it was the hosts who got out of the starting blocks quickest after their hooker Barry Williams had led the side out to mark his 100th appearance for the Welsh region.

Outside-half Shaun Connor booted a high and hanging drop goal between the posts before Glasgow had full-back Bernardo Stortoni sin-binned when he deliberately knocked-on as the Ospreys mounted a quick attack past the Scottish region's 22.

It got better for the Ospreys as full-back Lee Byrne finished off a superb movement across the back division, that included contributions from Connor and Gavin Henson, with a corner try.

It was all starting to fall into place for the home team after they had suffered losses to Cardiff Blues and Ulster on the road and arch-rivals Llanelli Scarlets at home.

But it did not last as Glasgow hit back with a vengeance.

An error on the Ospreys 22 gave outside-half Colin Gregor the chance to get the first points on the board for the Scotsmen, which he gratefully accepted.

And, he added another but only after converting a superb dash from 40 metres by scrum-half Sam Pinder for a try.

It put Glasgow ahead for the first time, however the Ospreys got their act back together and were rewarded as Byrne grabbed his second touchdown of the match after he was put in from two metres by scrum-half Justin Marshall.

Connor converted and also added another drop-goal, this time from 30 metres, to give his team an eight-point lead at half-time.

However, Glasgow fought back to go into a two-point lead at the hour mark. Gregor booted a penalty within three minutes of the restart before the Ospreys' defence was breached again.

This time, wing Colin Shaw rounded the home defence from 20 metres to go in at the right-hand corner.

They were on course for that first win of the campaign - but Connor had other thoughts.

He landed three penalties to put the Ospreys 30-23 ahead, before replacement Ben Lewis sprinted over for a third try for the home region to wrap things up.