I do not think it's a N.28. For one thing, my first impression is that this plane was rigged with two-bay wings. Also, the fuselage cross-section where it's broken near the tail doesn't look like the shape of a N.28.
So, based on the camo finish, a French plane -- with two-bay wings. First guesses are a Salmson 2 A2 or some kind of SPAD.
After looking at pics, it's definitely not a Salmson -- the tail pieces don't look anything like parts from a Salmson and, like the N.28, the fuselage cross-section near the tail is wrong. Also the rigging wires don't match the thick ones used on the Salmson 2 A2.
For a SPAD, it can't be one of the single-seat scouts because the unique SPAD rigging would tip it off. However, either the SPAD 11 or the SPAD 16 are candidates. After more photo comparisons, I think the SPAD 11 is the more likely candidate. The SPAD 16 had unique landing gear struts with a very wide, prominent construction where the axle passed through -- the wreck plane seems to lack this feature. The SPAD 11 also had this feature, but smaller I think. Still, the landing gear struts are the part that bothers me most.
There's not a lot to see in this picture, but I'll go with the SPAD 11.