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GRB 040223 was observed by INTEGRAL and XMM-Newton. GRB 040223 has a peakflux of (1.6+/-0.13) x10^-8 ergs cm^-2 s^-1, a fluence of (4.4+/-0.4)x10^-7ergs cm^-2 and a steep photon power law index of -2.3+/-0.2, in the energyrange 20-200 keV. The steep spectrum implies it is an x- ray rich GRB withemission up to 200 keV and E_peak < 20 keV. If E_peak is < 10 keV, it wouldqualify as an x-ray flash with high energy emission. The x-ray data has aspectral index beta_x = -1.7+/-0.2, a temporal decay of t^(-0.75+/-0.25) and alarge column density of (1.8 x 10^22) cm^-2. The luminosity-lag relationshipwas used to obtain a redshift (z = 0.1+0.04-0.02). The isotropic energyradiated in gamma-rays and x-ray luminosity after 10 hours are factors of 1000and 100 less than classical GRBs. GRB 040223 is consistent with theextrapolation of the Amati relation into the region that includes XRF 030723and XRF 020903.Comment: 5 pages, 3 figures. Proceedings of the 4th Workshop "Gamma-Ray Bursts  in the Afterglow Era", Roma, 2004 October 18-22, eds. L. Piro, L. Amati, S.  Covino, and B. Gendre. Il Nuovo Cimento, in press. Version 2: numerical error  corrected resulting in a lower redshif

INTEGRAL and XMM-Newton observations of the low-luminosity and X-ray rich burst GRB 040223