  We present the detection of high energy white-light flares from pre-main
sequence stars associated with the Orion complex, observed as part of the Next
Generation Transit Survey (NGTS). With energies up to $5.2\times10^{35}$ erg
these flares are some of the most energetic white-light flare events seen to
date. We have used the NGTS observations of flaring and non-flaring stars to
measure the average flare occurrence rate for 4 Myr M0-M3 stars. We have also
combined our results with those from previous studies to predict average rates
for flares above $1\times10^{35}$ ergs for early M stars in nearby young
associations.
