Apple has blamed “external physical damage” for causing a handful of iPhones to explode or catch fire in China and insisted that its handsets posed no safety problem.
Japan Today
HINTS
S Apple
V [has blamed]
O “external physical damage”
どんな→[for]
V [causing]
O a handful どんな→[of] iPhones
C[to] explode [or] [catch] fire
[in] China
[and]
V insisted
O [that]
S its handsets
V [posed]
O no safety problem