The company which provides out-of-hours doctors' services in much of East Anglia is being investigated by the national health watchdog.Take Care Now, based in Ipswich, provides out-of-hours services for Yarmouth and Waveney, the rest of Suffolk and Cambridgeshire, as well as some other parts of the country.

The company which provides out-of-hours doctors' services in much of East Anglia is being investigated by the national health watchdog.

Take Care Now, based in Ipswich, provides out-of-hours services for Yarmouth and Waveney, the rest of Suffolk and Cambridgeshire and some other parts of the country.

The investigation by the Care Quality Commission follows the death of David Gray in February 2008 in the Fenland village of Manea. He was accidentally given an overdose of diamorphine by Daniel Ubani, a German doctor on his first shift as a locum for TCN.

But the CQC, successor to the Healthcare Commission, says it is going to hold a wider inquiry into its out-of-hours services and is "aware of a number of concerns in relation to out-of-hours care provided by TCN".

Clare Secker, 19, from Gorleston, died on December 29, three days after being told by TCN that she probably had flu and no doctor was available

to visit her. An internal inquiry by NHS Yarmouth and Waveney recommended improvements.

In early January, Colette Smith, 11, from Ipswich, became seriously ill after being sent home by an on-call GP at the TCN-run clinic, who missed the fact she had viral meningitis.

David Cocks, chief executive of TCN, said: "Our response has been focused on doing everything we can to ensure such a tragedy could never happen again."