Hamas and Fayyad have been plotting to kill Fayyad:

Fatah and Hamas leaders are plotting to kill Palestinian Authority Prime Minister Salam Fayyad because he is becoming more popular than PA chairman Mahmoud Abbas, according to a senior PA intelligence agent quoted by Arab activist and writer Fadi Elsalameen.

"Hamas and Fatah agree only on one thing: getting rid of Fayyad by hook or crook,” The agent, identified only as “J,” told Elsalameen............................