Deadly airstrikes in Gaza on Wednesday have raised doubts about new U.S. efforts to advance a ceasefire there. Local hospitals and the Palestinian Red Crescent say at least 10 people were killed in two strikes, days after a U.S. envoy met with Israel's prime minister. Witnesses said Israeli troops also crossed the ceasefire line and detained a Hamas police colonel. Israel’s military said the strikes targeted Hamas commanders involved in previous attacks. The Palestinian Red Crescent said a strike on a police station killed at least nine people. On the diplomatic front, ceasefire negotiations appear stalled, with disagreements over Hamas' disarmament and Israel's withdrawal.