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* FTSE 100 down 0.2%, FTSE 250 down 0.3%
* U.S. tariffs on European Union dampen sentiment
* Ted Baker sinks after profit warning
Oct 3 (Reuters) - London's FTSE 100 drifted lower for the fourth straight session on Thursday, as U.S. tariffs on the European Union added to worries about global growth, while small-cap Ted Baker tanked after its second profit warning this year.
The main index, which had suffered its worst one-day drop since before the 2016 Brexit vote in the previous session, shed 0.2% with all but one sector in the red. The mid-cap FTSE 250 lost 0.3% by 0708 GMT.
Fashion retailer Ted Baker Plc slumped 27% to its lowest in more than 7-1/2 years after it posted a first-half pre-tax loss and warned that unseasonably warm weather, heavy discounting by rivals and weak consumer demand would hit full-year profit. (Reporting by Muvija M and Shashwat Awasthi in Bengaluru; Editing by Shounak Dasgupta)